Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Tanmay Thomare 6 years, 9 months ago
- 1 answers
Posted by Omkar Babar 6 years, 9 months ago
- 3 answers
Anushka Roulo 6 years, 9 months ago
Posted by Himanshu Yadav 6 years, 9 months ago
- 2 answers
Posted by Haris Ismail 6 years, 9 months ago
- 1 answers
Posted by Craft Technology 6 years, 9 months ago
- 1 answers
Yogita Ingle 6 years, 9 months ago
Auto means self and trophos means nourishment. Plants are called autotrophs because they make their food themselves. The making of food for themselves is called the Autotrophic nutrition. Autotrophic nutrition is found in green plants, and in some bacteria.
Posted by Priyanshu Pradeep 6 years, 9 months ago
- 2 answers
Twinkle Biswas 6 years, 9 months ago
Yogita Ingle 6 years, 9 months ago
Algae is a kind of a photosynthetic organism, which is usually grown in the moist areas. These are usually the simple plants that grow near to the water bodies. It contains a kind of chlorophyll pigments that act as a primary coloring agent. Generally, it comes in the form of aquatic and autotrophic with different cell types and tissues.
Posted by Nikka Saab 6 years, 9 months ago
- 2 answers
Yogita Ingle 6 years, 9 months ago
Time is the indefinite continued progress of existence and events that occur in apparently irreversible succession from the past through the present to the future.
We can't know what the first unit of time used by mankind is, because the first unit of time was invented in prehistoric times, which by definition makes it pre-historic (i.e., before any historical records could document it). After consulting a copy of Calendars in Antiquity: Empires, States, and Societies at Google Books, the earliest recorded unit of time I could find is thehamuštum, which appears in Assyrian documents that date circa 2500 to 2000 BC. The hamuštum is approximately seven days long, but scholars disagree as to whether it was exactly seven days (like the modern "week") or an interval equal to about one-fourth of a lunar calendar month (which would make it vary between seven and eight days).
Posted by Harsh Saini 6 years, 9 months ago
- 1 answers
Yogita Ingle 6 years, 9 months ago
- Internal factors include the structure of that particular plant, the age of the plant, the plant’s genetic make-up, growth, the orientation of leaves and so on.
- External factors include sunlight, carbon dioxide concentration, temperature, water, and so on.
Posted by Harsh Saini 6 years, 9 months ago
- 2 answers
Yogita Ingle 6 years, 9 months ago
For photosynthesis green plants take carbon dioxide from the air. The carbon dioxide enters the leaves of the plant through the stomata present on their surface. Each stomatal pore is surrounded by a pair of guard cells.
Posted by Ja Nya 6 years, 9 months ago
- 2 answers
Asmita Amte 6 years, 9 months ago
Yogita Ingle 6 years, 9 months ago
Chlorophyll is used by plants to produce glucose, energy, both carnivorous plants and “normal” plants do this.
However, plants also need nutrients, and chlorophyll does not provide the plants nutrients. Most plants obtain nutrients out of the ground using their roots, however these pitcher plants grow in boggy Ares, and whilst there are some (few) nutrients in this soil, it isn't enough for them. So carnivorous plants obtain their nutrients by catching and breaking down insects. The pitcher plants lures in insects with nectar into a pitfall trap and the water at the bottom has enzymes to break down the insects, so their nutrients can be absorbed.
Posted by Brijesh Pandey 6 years, 9 months ago
- 2 answers
Yogita Ingle 6 years, 9 months ago
“Host" is the organism which is attacked by a parasite, e.g., you have a parasite inside your body, then for the parasite you're the host.
Pradeep Rawat 6 years, 9 months ago
Posted by Mohita Agrawal 6 years, 9 months ago
- 1 answers
Posted by Prisca Jean 6 years, 9 months ago
- 3 answers
Saumya Sam 6 years, 9 months ago
Susanta Barik 6 years, 9 months ago
Posted by Prisca Jean 6 years, 9 months ago
- 1 answers
Yogita Ingle 6 years, 9 months ago
The water is in fact not colorless; even pure water is not colorless, but has a slight blue tint to it.
Posted by Armaan Jangid 6 years, 9 months ago
- 2 answers
Yogita Ingle 6 years, 9 months ago
When a few drops of iodine are added to the food containing starch, it turns blue-black in colour showing the presence of starch.
Posted by Pawan Singh Shekhawat 6 years, 9 months ago
- 2 answers
Pradeep Rawat 6 years, 9 months ago
Anagha Avinash 6 years, 9 months ago
Posted by Bikram Kumar Gope 6 years, 9 months ago
- 1 answers
Posted by Bikram Kumar Gope 6 years, 9 months ago
- 3 answers
Posted by Avani Kotangale 6 years, 9 months ago
- 1 answers
Posted by Kunal Patil 6 years, 9 months ago
- 1 answers
Pradeep Rawat 6 years, 9 months ago
Posted by Kriti Tewary 6 years, 9 months ago
- 1 answers
Posted by Ankita Nayak 6 years, 9 months ago
- 2 answers
Pradeep Rawat 6 years, 9 months ago
Posted by Priyanka Gowda 6 years, 9 months ago
- 0 answers
Posted by Vikas Awasthi 6 years, 9 months ago
- 3 answers
Yogita Ingle 6 years, 9 months ago
Magnetic material is substances that are attracted by a magnet. Magnetic materials are categorised as magnetically hard, or magnetically soft materials. Magnetically soft materials are easily magnetised but the induced magnetism is usually temporary.
Sachin Kelhe 6 years, 9 months ago
Vikas Awasthi 6 years, 9 months ago
Posted by Ritesh Jamakhandi 6 years, 9 months ago
- 2 answers
Gaurav Seth 6 years, 9 months ago
Acids:
- Acids are sour in taste
- The chemical nature of such substances is acidic
- Acid turns blue litmus red
- It gives hydrogen ion when dissolves in water
- Do not give any colour with phenolphthalein indicator
- Do not absorb carbon dioxide gas
- Acids do not react with ammonium salt
- Acids are generally found in Vinegar, Curd, Spinach, lemons, Citrus fruits, Amla, Tamarind, grapes, unripe mangoes, Citrus fruits such as oranges, etc.
Bases:
- Bases are bitter in taste and soapy to touch
- Base turns red litmus blue
- The nature of such substances is said to be basic
- It gives hydroxide ions when dissolves in water
- It give pink colour with phenolphthalein indicator
- Some bases like NaOH absorbs carbon dioxide gas
- Bases are generally found in lime water, soap, window cleaner, Milk of Magnesia
- Reacts with ammonium salt to give ammonia gas
Posted by Vilash Patel 6 years, 9 months ago
- 1 answers
Yogita Ingle 6 years, 9 months ago
Blood contains both useful and harmful substances. Hence, we have kidneys which separate useful substances by reabsorption and toxic substances by producing urine. Kidney has a structural filtration unit called nephron where the blood is filtered. Each kidney contains a million of nephrons. Capillaries of kidneys filter the blood and the essential substances like glucose, amino acids, salts, and required amount of water are reabsorbed. Meanwhile, the pure blood circulates back to other parts. Excess water and nitrogenous waste in humans are converted to urine.Urine thus produced is passed to the urinary bladder via the ureters. The urinary bladder is under the control of Central Nervous System. The brain signals the urinary bladder to contract and through the urinary opening called urethra, we excrete the urine.
Posted by Ritesh Jamakhandi 6 years, 9 months ago
- 1 answers
Yogita Ingle 6 years, 9 months ago
When light travels obliquely from one transparent medium into another it gets bent. e.g. This bending of light is called refraction of light. The straw appears to break at the surface of the water due to refraction of light.
Posted by Priya K 6 years, 9 months ago
- 2 answers
Gaurav Seth 6 years, 9 months ago
Solids
(i) Solids have definite shape and distinct boundaries.
(ii) Solids have fixed volume.
(iii) They have negligible compressibility.
(iv) They are rigid (their shape cannot be changed).
(v) Their intermolecular force of attraction is maximum.
(vi) The kinetic energy of its particles is minimum.
Liquids:
(i) Liquids do not have definite shape and distinct boundaries.
(ii) Liquids have fixed volume.
(iii) They can be compressed.
(iv) They take up the shape of the container (they can change its shape).
(v) They are fluid and thus can flow like water.
(vi) Their intermolecular force of attraction is less than solids.
(vii)The kinetic energy of its particles is more than solids.
Gas
(i) Gases neither have definite shape nor have fixed volume.
(ii) They can be compressed much.
(iii) They can take any shape.
(iv) They are neither rigid nor fluids.
(v) Their intermolecular force of attraction is least.
(vi) The kinetic energy of its particles is maximum.
Posted by Sachin Kumar 6 years, 9 months ago
- 1 answers
Meghna Thapar 5 years, 10 months ago
A magnet will repel or attract the other magnet always depends on the poles of the magnets facing each other.
If we place two magnets in such a way that the north pole of one magnet faces the north pole of the other magnet, they will repel each other. Similarly, if the south pole of one magnet faces the south pole of another magnet, they will repel each other.
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Gaurav Seth 6 years, 9 months ago
1.Kharif crops are grown with the onset of monsoon in different parts of the country and these are harvested in September-October.
2. Important crops grown during this season are paddy, maize, jowar, bajra, tur (arhar), moong, urad, cotton, jute, groundnut and soyabean.
0Thank You