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Biomagnification, also known as bioamplification or biological magnification, is the increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain.

The accumulation and progressive increase in the concentration of non biodegradable, harmful chemicals at different tropic levels in a food chain is called bioconcentration or biomagnification.

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Dipika Mohan 6 years, 3 months ago

The accumulation of a particular substance through different tropic levels is called as bio magnification.

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ANSWER

I have a question that base give OH- in aqueos solution so NaCl is a base but they can't disove in aqueos solution why

Posted by Mayank Singh 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Suryansh Agarwal 6 years, 3 months ago

NaCl is a salt , in fact , neutral salt and cm dissolve in water. Moreover, all bases are not water soluble . There are some bases that are soluble in water while there are also some bases which can't dissolve in water.

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Aadya Singh ? 6 years, 3 months ago

NaCl is a salt...

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ANSWER

Why respiration and decomposition processes are considered to be an exothermic processes ?

Posted by Chhaya Sharma 6 years, 3 months ago

CBSE > Class 10 > Science

3 answers

Shivam Mishra 6 years, 3 months ago

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Shivam Mishra 6 years, 3 months ago

<formal srcipt>hii

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Aadya Singh ? 6 years, 3 months ago

Because energy is released during these processes...

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ANSWER

What is allotropy ?

Posted by Unnati Agarwal 6 years, 3 months ago

CBSE > Class 10 > Science

5 answers

Unnati Agarwal 6 years, 3 months ago

Hmm...tq

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Ram ? 6 years, 3 months ago

Hi unnati

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Aditya?? Gujjar?‍♂️?️‍♂️ 6 years, 3 months ago

The existence of one element in different forms having different physical properties but similar in chemical property

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Lucifer ? Morningstar? 6 years, 3 months ago

the ability that certain substances have to exist in more than one physical form

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Unnati Agarwal 6 years, 3 months ago

I will be online after 1 hr

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ANSWER

What causes rancidity

Posted by Chhaya Sharma 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 6 years, 3 months ago

When fats and oils are left open, they get oxidized in the presence of air, their smell and taste change. This means the oxidation is the main cause for rancidity in fats and oil.

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Anjali Anil 6 years, 3 months ago

When the food items gets into the contact with moisture(air and water)from atmosphere, causes rancidity which results in softening of food items,bitter taste,bad smell etc.

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ANSWER

Amphoteric oxidea

Posted by Ratanraj Jaiswal 6 years, 3 months ago

CBSE > Class 10 > Science

5 answers

Chhaya Sharma 6 years, 3 months ago

Example. Aluminium oxide and zinc oxide

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Chhaya Sharma 6 years, 3 months ago

Oxides that behave as both acidic oxide and basic oxide are called amphoteric oxides . Example: aluminium oxide and zind oxide

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Aadya Singh ? 6 years, 3 months ago

Ⓟⓡⓔⓥⓘⓔⓦ Ⓣⓔⓧⓣ The metal oxide which behaves as both acid and base is called Amphotheric oxide . For example - Aluminium oxide and zinc oxide.

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Kavita Mukesh 6 years, 3 months ago

Metallic oxides which react with both acids as well as bases to produce salt and water are called Amphoteric oxides.For ex: Aluminium oxide

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Lucifer ? Morningstar? 6 years, 3 months ago

The metal oxide which react with both acid as well as base to form salt is known as amphoteric oxide

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ANSWER

Which of the following diets would you recommend to the affect patient

Posted by Brand Deva Gaming Gaming 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Aadya Singh ? 6 years, 3 months ago

Agar ye science k sample paper ka question h...then option (d) is correct...means.. low sugar and high fiber diet....???

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ANSWER

Anybody tell how to study of science

Posted by Rahul Sharma 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Vanshita Mittal 6 years, 3 months ago

Take any textbook and read it line to line and then solve latest sample papers. If any question in the sample paper is of a topic which you have not read, search for the topic and read carefully and you are ready to go dear.

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✳️ Roman ✳️ ( Syllabus Not Complete ) 6 years, 3 months ago

By reading ncert line by line and understanding it's meaning

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ANSWER

on what basis is the chemical equation balance????

Posted by Dàñïyã Ãrshãd? 6 years, 3 months ago

CBSE > Class 10 > Science

5 answers

Shreyas Samarth 6 years, 3 months ago

To follow the law of conservation of mass

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Dàñïyã Ãrshãd? 6 years, 3 months ago

thnkuuuu to all

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Ujjwal Pandey 6 years, 3 months ago

When all the elements in the reactant and product contains equal number of atoms then a chemical equation is said to be balanced.

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Deepanshu Tyagi 6 years, 3 months ago

Number of atoms of different elements in an equation.

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Vanshita Mittal 6 years, 3 months ago

On the basis of number of atoms in the reactant and product. The reaction must have same number of atoms on both the sides of the arrow.

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ANSWER

What are raphides

Posted by Aahna Sharma 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 6 years, 3 months ago

Raphides are needle-shaped crystals of calcium carbonate or calcium oxalate found in specialized plant cells called idioblasts.

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ANSWER

How is method of extraction oc metals high up in the reactivity series different from that for metals in the middle ? Why can the same process applied for them ? Name the process used for extraction of these metals .

Posted by Pooja Bashera 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Pooja Bashera 6 years, 3 months ago

Hlo

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Karthick Karthick 6 years, 3 months ago

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What happens when 5% alkaline potassium permagnet solution is added drop by drop to warm propyl alcohol ( propanol ) taken in a test tube ? Explain with the help of a chemical equation.

Posted by Pooja Bashera 6 years, 3 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

A person standing 3 m away a chart he could not see this what wiil problem with him?

Posted by Aggarwal Kingdom 6 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Deepanshu Tyagi 6 years, 3 months ago

Pagal hoga

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Harjeet Kaur 6 years, 3 months ago

Myopia

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Shreyas Samarth 6 years, 3 months ago

Myopia

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Madhavi Nakum 6 years, 3 months ago

Its myopia

4Thank You

ANSWER

Create a terrestrial food chain depicting four trophic levels

Posted by Jaspreet Chhina 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 6 years, 3 months ago

Here is the explaination of the four levels of the terrestrial type of food chain -

The first level is called producers and this consist of producers which are the green plants. Then comes the second level called the primary consumers like earthworms, which feeds on the green plants. Next is the secondary consumers like hens, birds which feeds on the earthworms. 4th level is the tertiary consumers including vultures, eagles, etc.

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Harjeet Kaur 6 years, 3 months ago

Grass-Grasshopper-frog-snake

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ANSWER

What is the genotype of violet and white flowers?

Posted by Aviral Goyal 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Shreya ... 6 years, 3 months ago

Genotype of purple flower is PP and white flower is pp.

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Aviral Goyal 6 years, 3 months ago

Pls answer someone it's really urgent

3Thank You

ANSWER

Name main thinging part of the brain and its functions

Posted by Sridhar Vijay 6 years, 3 months ago

CBSE > Class 10 > Science

6 answers

Deepanshu Tyagi 6 years, 3 months ago

Cerebrum.It control all our actions,our thinkings,etc.It is main thinking part of brain.

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Shreyas Samarth 6 years, 3 months ago

Cerebrum

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Yogita Ingle 6 years, 3 months ago

The brain is made of three main parts: the forebrain, midbrain, and hindbrain. The forebrain consists of the cerebrum, thalamus, and hypothalamus . The midbrain consists of the tectum and tegmentum. The hindbrain is made of the cerebellum, pons and medulla.
Cerebrum:The cerebrum is the largest part of the human brain, associated with higher brain function such as thought and action. The cerebral cortex is divided into four sections, called "lobes": the frontal lobe, parietal lobe, occipital lobe, and temporal lobe.
Frontal Lobe- associated with reasoning, planning, parts of speech, movement, emotions, and problem solving

Parietal Lobe- associated with movement, orientation, recognition, perception of stimuli
Occipital Lobe- associated with visual processing
Temporal Lobe- associated with perception and recognition of auditory stimuli, memory, and speech

Thalamus- It is a large mass of gray matter deeply situated in the forebrain at the topmost portion of the diencephalon. The structure has sensory and motor functions. Almost all sensory information enters this structure where neurons send that information to the overlying cortex.
Hypothalamus- It is a part of the diencephalon, ventral to the thalamus. The structure is involved in functions including homeostasis, emotion, thirst, hunger, circadian rhythms, and control of the autonomic nervous system. It also controls the pituitary.

Midbrain- It is involved in functions such as vision, hearing, eyemovement, and body movement.

Cerebellum - The cerebellum has two hemispheres and has a highly folded surface or cortex. This structure is associated with regulation and coordination of movement, posture, and balance.

Pons-It is involved in motor control and sensory analysis. It has parts that are important for the level of consciousness and for sleep.

Medulla Oblongata-This structure is present between the pons and spinal cord. It is responsible for maintaining vital body functions, such as breathing and heartrate.

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Aryan Gupta 6 years, 3 months ago

Cerebrum

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Shreya ... 6 years, 3 months ago

Cerebrum is the main thinking part of brain. It is also responsible for reasoning, speech, intelligence sight, hearing and usage of information. It has 3 parts, sensory areas, association areas and motor areas.

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Aviral Goyal 6 years, 3 months ago

Cerebrum

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ANSWER

Wings of bat and birds have different design (i) in which they are different. Explain.

Posted by Harjeet Kaur 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Deepanshu Tyagi 6 years, 3 months ago

Bhai These are analogus organs which have same work but different basic structure.

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Aggarwal Kingdom 6 years, 3 months ago

They anologus organ

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ANSWER

State the factors which determine lateral displacement of ray of light passing through a rectangular glass slab?

Posted by Shreyas Samarth 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 6 years, 3 months ago

The factors that affect the lateral displacement of a light as it passes through a rectangular glass slab are:
1. The thickness of the glass slab: The lateral displacement increases with the increase in the thickness of the glass slab.
2. The angle of incidence: It increases with the increase in the angle of incidence.
3. The refractive index of glass: The wavelength of light used. (It is more for violet light than for red light).

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Shreya ... 6 years, 3 months ago

Thickness of the glass slab...angle of refraction and angle of incidence.

6Thank You

ANSWER

What is overloading in an electric circuit?

Posted by Shreyas Samarth 6 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Raunak Chauhan 6 years, 3 months ago

It is the situation when shot circuit occurs due to the use of more than one high voltage appliances from a switch or a source of power .Due to this overall resistance increase and lot of heat produce and the plastic covering of metal wire melt and positive and negative terminal come in contact and sparking arise

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Yogita Ingle 6 years, 3 months ago

The current in a circuit depends on the rating of the appliances connected to it. The choice of wires depends upon the maximum current estimated to pass through them. If the total power rating of the appliances exceeds this permitted limit, they tend to draw a large current. This is known as overloading due to excessive heating takes place.

Overloading occurs when too many appliances are connected in a single socket or live and neutral wires come in contact with each other.

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Shreyas Samarth 6 years, 3 months ago

Tnx pls ans my questions of sst and eng.

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Shreya ... 6 years, 3 months ago

Current circulating in the circuit becomes more than the capacity in the circuit to withstand the current, this situation is known as overloading.

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ANSWER

Name the hormone associated with maintenance of pregnancy.

Posted by Shreyas Samarth 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Aryan Gupta 6 years, 3 months ago

Progesterone. Oxytocin helps in parturition

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Abhinav ? 6 years, 3 months ago

Progesteron

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ANSWER

Function of blood vessels in brief?

Posted by Shreyas Samarth 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Raunak Chauhan 6 years, 3 months ago

There are three types of blood vessel in human body . Artery Veins Capillary. Functions : It carry blood from one part to another. Through blood Capillary gaseous exchange takes place Oxygen diffuse in and Carbon dioxide diffuse out.

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Shreya ... 6 years, 3 months ago

Arteries carry oxygenated blood from the heart to various organs of the body except pulmonary artery. Veins collect deoxygenated blood from different organs and bring it back to the heart except pulmonary vein. Capillaries help in exchange of materials b/w blood and surrounding cells takes place in capillaries.

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ANSWER

How does feed-back mechanism regulate the hormone secretion?

Posted by Shreyas Samarth 6 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 6 years, 3 months ago

Feedback Mechanism :

♦ Timing and amount of hormones released by various glands is regulated by a mechanism called feedback mechanism.

♦ It is build up within our body.

For instance,

It is due to this mechanism, pancreases produce more insulin when blood glucose level rises. Insulin decreases glucose level.

Similarly, when blood glucose level falls than normal, pancreases produce more glucagon to increase glucose level in blood.

Thus, feedback mechanism is vital for proper functioning of our endocrine system.

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ANSWER

Which element is essential for formation of protein?

Posted by Lucifer ? Morningstar? 6 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Unnati Agarwal 6 years, 3 months ago

Hello

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Unnati Agarwal 6 years, 3 months ago

Gud que Is the answer carbon , nitrogen and hydrogen.

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Yogita Ingle 6 years, 3 months ago

Proteins are large molecules that our cells need to function properly. They consist of amino acids. The structure and function of our bodies depend on proteins. The regulation of the body's cells, tissues, and organs cannot happen without them.

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Abhinav ? 6 years, 3 months ago

Carbon

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ANSWER

Why Co2 is transported in human body in dissolve form?

Posted by Lucifer ? Morningstar? 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 6 years, 3 months ago

CO₂ is highly soluble in water, so it is mostly transported in dissolved form in our blood plasma.

Carbon dioxide produced in the tissue cells diffuses into the blood plasma. The largest fraction of carbon dioxide diffuses into the red blood cells. The carbon dioxide in the red blood cells is transported as dissolved carbon dioxide (7 per cent), combined with hemoglobin, carbaminohemoglobin (23 per cent) or as bicarbonate (70 per cent).

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Shreyas Samarth 6 years, 3 months ago

Because co2 is more dissolvable in water.

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ANSWER

Nonmetal hydrogen gas ku nhi relases krti

Posted by Charu Munjal 6 years, 3 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 6 years, 3 months ago

Except for carbon all the non-metals are below hydrogen in the activity series of the elements because of which Non-metals do not evolve hydrogen gas when react with water, steam or dilute acids.

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Lucifer ? Morningstar? 6 years, 3 months ago

Non-metals are less reactive than hydrogen. So,they are not able to release hydrogen

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ANSWER

State Mendels 3 law

Posted by Prabha Gala 6 years, 3 months ago

CBSE > Class 10 > Science