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Suhani And Sunali Rai 4 years, 5 months ago
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Meghna Thapar 4 years, 5 months ago
Nature of a liquid affects tge Rate of Evaporation greatly. In evaporation the molecules of the liquid Having High K. E. (kinetic energy) then the Average K. E. Per molecule of the liquid Escape from the surface by escaping from the influence of Intermolecular Forces.
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Yogita Ingle 4 years, 5 months ago
Carbon is found elemental form as well as combined form on the Earth.
In combined state it is present as carbon dioxide in the atmosphere, as carbonate and hydrogen-carbonate salts in various minerals and as life molecules.
It is through photosynthesis (carried out by life-forms containing chlorophyll) that carbon gets incorporated into life-forms. Photosynthesis converts carbon dioxide (from the atmosphere or dissolved in water) to glucose in the presence of sunlight by all life-forms that contain chlorophyll. These glucose molecules are either converted into other substances or used to provide energy to the organism for carrying out its life processes or building other molecules.
Energy is provided through the process of respiration, which converts glucose back into carbon dioxide. In addition, combustion of fuels to provide energy for various needs like heating, cooking, transportation and industrial processes also releases carbon dioxide to atmosphere. Today the percentage of carbon dioxide in the atmosphere has doubled since the industrial revolution. Thus carbon is cycled repeatedly through different forms by the various physical and biological activities.
Posted by Rishit Barala 4 years, 5 months ago
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Yogita Ingle 4 years, 5 months ago
Chromatin is the complex of nucleic acids (DNA and RNA) and proteins (primarily histones), in the cell nucleus that stains readily with basic dyes and condenses to form chromosomes during cell division. is found inside the nuclei of eukaryotic cells, and within the nucleoid in prokaryotic cells. It is divided between heterochromatin (condensed) and euchromatin (extended) forms. The functions of chromatin are to package DNA into a smaller volume to fit in the cell, to strengthen the DNA to allow mitosis and meiosis, and to serve as a mechanism to control expression and DNA replication.
Chromatid is either of the two daughter strands of a replicated chromosome that are joined by a single centromere and separate during cell division to become individual chromosomes. The term is used so long as the centromeres remain in contact. When they separate (during anaphase of mitosis and anaphase 2 of meiosis), the strands are called daughter-chromosomes. In other words, a chromatid is 'one-half of a replicated chromosome'.
Posted by Chinmaya Sahani 4 years, 5 months ago
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Yogita Ingle 4 years, 5 months ago
Mycoplasmas are the smallest and the simplest organisms. They are prokaryotes having nucleoid. They have heterotrophic mode of nutrition and their body can change forms easily. They are also called as MLO, i.e., Mycoplasma Like Organisms.
Posted by Aniket Singh 4 years, 5 months ago
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Yogita Ingle 4 years, 5 months ago
The degree Celsius is the most commonly used unit to measure the temperature. The laboratory thermometer and the clinical thermometer are both calibrated on Celsius scale of temperature. Even the temperature measured in Kelvin or Degree Fahrenheit can be related to the Degree Celsius value.
Posted by Syed Faizan Hussain 4 years, 5 months ago
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Yogita Ingle 4 years, 5 months ago
Advantages of Sustainable agriculture:
- It achieves the integration of natural biological cycles and control.
- It protects and renews soil fertility and the natural resource base.
- It provides an adequate and dependable form of income.
- It promotes opportunity in family farming and farm communities.
Posted by Manasvi Makwana 4 years, 5 months ago
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Yogita Ingle 4 years, 5 months ago
An Element is a substance made from only one type of atom.An element cannot be broken down(chemically) into a more simple substance. The Periodic table shows all the elements
A compound is a substance formed when two or more chemical elements are chemically bonded together.Compounds can be decomposed chemically into their constituent elements.It has unique properties that are different from the properties of its individual elements.The elements in any compound are always present in fixed ratios.
Posted by Mandeep Kaur 4 years, 5 months ago
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Yogita Ingle 4 years, 5 months ago
Parenchyma provides support to plants and also stores food. It is a basic packing tissue in plants. Parenchyma of stems and roots store water and nutrients. Sometimes it contains chlorophyll and performs photosynthesis ( called chlorenchyma) . In aquatic plants, parenchyma ( called aerenchyma) shows large air spaces to give buoyancy to plant.
Posted by Yash Soni 4 years, 5 months ago
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Yogita Ingle 4 years, 5 months ago
Protoplasm is a jelly-like substance known to be the living part of the cell. The term was proposed in 1835 and was known as the primary substance responsible for all the living processes.
Functions:
- Protoplasm acts as a store of vital chemicals like amino acids, proteins, sugars etc.
- It is the site of some metabolic reactions.
Posted by Bihari Lal 4 years, 5 months ago
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Yogita Ingle 4 years, 5 months ago
| Property | Solids | Liquids | Gases |
|
Difficult | Nearly difficult | Easy |
|
Highly rigid - Posses fixed shape | Not rigid- gets the shape of the container | Not rigid |
|
Particles cannot flow | Comparing with gases very low | Particle can flow |
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Yogita Ingle 4 years, 5 months ago
Nucleoplasm is a type of protoplasm that is composed of thick fluid and constitutes chromatin fibres made up of DNA and usually found in the nucleus of the eukaryotic cells. This fluid contains primarily water, dissolved ions, and a complex mixture of molecules.
Its primary function is to act as a suspension medium for the organelles of the nucleus.
Posted by Annesha Mazumder 4 years, 5 months ago
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Yogita Ingle 4 years, 5 months ago
On a hot summer and humid day, the temperature of the body increases. Therefore, in order to cool the skin, the body starts sweating.
It absorbs the latent heat of the body and gets evaporated into the atmosphere.
Apart from that, increased humidity level is a major case of sweating.
Posted by Yash Soni 4 years, 5 months ago
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Meghna Thapar 4 years, 4 months ago
- Anything which occupies space and has mass is called matter.
- The intermixing of particles of two different types of matter on their own is called diffusion.
- The temperature at which a solid melts to become a liquid at the atmospheric pressure is called its melting point.
- The temperature at which a liquid starts boiling at the atmospheric pressure is known as its boiling point.
- The phenomenon of change of a liquid into vapours at any temperature below its boiling point is called evaporation.
- Humidity is the amount of water vapour present in air.
- A material which can flow easily is called a fluid.
- Diffusion is a property of matter which is based on the motion of its particles.
- Sublimation is the change of gaseous state directly to solid state without going through liquid state, and vice versa.
- The process in which a solid substance changes into a liquid on heating, is called melting.
- The process in which a liquid substance changes into a gas on heating, is called boiling.
- The process of changing a gas to a liquid by cooling, is called condensation.
- The latent heat of fusion of a solid is the quantity of heat in joules required to convert 1 kilogram of the solid to liquid, without any change in temperature.
- The latent heat of vapourisation of a liquid is the quantity of heat in joules required to convert 1 kilogram of the liquid or gas, without any change in temperature.
- The process of a liquid changing into vapour even below its boiling point is called evaporation.
Posted by Yash Soni 4 years, 5 months ago
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Posted by Shubham Kumar 4 years, 5 months ago
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Yogita Ingle 4 years, 5 months ago
Given :-
Initial speed of the bus = 0 m/s
Acceleration = 0.1 m/s²
Time taken, t = 2 minutes = 120 s
Putting all the value, we get
(a) Speed acquired
⇒ v = u + at
⇒ v = 0 + 0 × 1 × 120
⇒ v = 12 m/s
(b) Distance travelled.
⇒ (12)² - (0)² = 2(0.1) s
⇒ s = 720 m
Hence, Speed acquired finally by the bus is 12 m/s.
And Distance travelled by the bus is 720 m.
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Ayush Tyagi 4 years, 5 months ago
3Thank You