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  • 1 answers

Meghna Thapar 6 years ago

A forest is a large area of land covered mainly with trees and plants. Many animals such as lion, deer and plants live in grasslands or forests.

The adaptations in lion and deer are given below:

Adaptation in lion:

The lion is a carnivorous animal which eats only meat. Its special features which help it to survive in grasslands are as follows:

  1. It is a strong, fast and agile animal which can hunt and kill its prey like deer.
  2. It has long, sharp and strong claws in its front legs to catch its prey.
  • 1 answers

Yogita Ingle 6 years ago

Sl. No.

Differentiating Property

Physical Change

Chemical Change

1

Explanation

In a physical change, the molecules are rearranged while their actual composition remains same.

In a chemical change, the molecular composition of a substance completely changes and a new substance is formed.

2

Example

Some example of physical change are freezing of water, melting of wax, boiling of water, etc.

A few examples of chemical change are digestion of food, burning of coal, rusting, etc.

3

Reversibility

Physical change is easily reversible i.e original substance can be recovered.

Chemical change is irreversible i.e. original substance cannot be recovered.

4

Formation of new substance

In physical change, no new substance is formed.

A chemical change is always accompanied by one or more new substance(s).

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  • 2 answers

Yogita Ingle 6 years ago

Luminous Objects:  Luminous Objects are objects which exhibit light in their own.
Examples: - Sun, flame of a burning candle

Sweathaa Singh 6 years ago

Which emit their ownlight
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  • 2 answers

Kamaljeet Kaur 6 years ago

Equal

Kamaljeet Kaur 6 years ago

Add suitable prefix to the following words
  • 1 answers

Sushmita Mp 6 years ago

Enlightenment
  • 1 answers

Meghna Thapar 6 years ago

Self demagnetisation, also referred to as shape demagnetisation, affects both the induced and remanent magnetisation of any magnetised body. It occurs when magnets are left for long.
  • 1 answers

Meghna Thapar 6 years ago

 The Nitrogen Cycle: The continuous process by which nitrogen is exchanged between organisms and the environment is called nitrogen cycle. Nitrogen is an essential nutrient, needed to make amino acids and other important organic compounds, but most organisms cannot use free nitrogen, which is abundant as a gas in the atmosphere. Nitrogen cycle involves the following steps: (i) Nitrogen fixation: This process involves the conversion of atmospheric nitrogen into nitrates, which are soluble in water. This is done by various nitrogen fixing bacteria. Example - Rhizobium, blue green algae and bacterium Azotobacter. (ii) Ammonification: It is the process of decomposing complex, dead organic matter into ammonia. This is done by microorganisms living in the soil. (iii) Nitrification: It is the process of conversion of ammonia into nitrites and then into nitrates. This is done by nitrifying bacteria. Example - Nitrosomonas and Nitrobacter. (iv) Denitrification: It is the process of reducing nitrates present in the soil to release nitrogen back into the atmosphere. Example - Pseudomonas.

The decomposers help in decomposing the dead bodies of plants and animals, and hence act as cleansing agents of environment. The decomposers also help in putting back the various elements of which the dead plants and animals were made, back into the soil, air and water for reuse by the producers like crop-plants, e.g. the decomposers like purifying bacteria and fungi decompose the dead plants and animal bodies into ammonia. This ammonia is converted into nitrates by nitrifying bacteria present in soil. These nitrates act as fertilizer in the soil and are again absorbed by the plants for their growth. Thus, the nitrates act as fertilizer in the biosphere so that the process of life may go on and on like an unending chain.
  • 3 answers

Samardeep Singh 5 years, 11 months ago

365

Siya Bataan 6 years ago

Pedle pagal
1 dsy is theair
  • 1 answers

Meghna Thapar 6 years ago

The arrangement of veins in a leaf or in the wing of an insect is called venation. Venation is of two types - parallel venation and recticulate venation.
  • 1 answers

Rakesh Mistry 6 years ago

The study of the objects that were used and made in past is called as archaeology
  • 1 answers

Yogita Ingle 6 years ago

Fa Xian came to India about 1600 years ago, Xuan Zang came about 1400 years ago and I-Qing came 50 years after Xuan Zang. Their main purpose was to visit he places associated with Buddha and Buddhism.
Nalanda University was famous and was in modern day Bihar. Xuan Zang had also written about this university. Xuan Zang has mentioned that the university was full of learned people. The admission process for this university was very tough. The success rate of students was less than 20% during the entrance tests for this university.

  • 4 answers

Aditi Patel 6 years ago

500

Niket Mankad 6 years ago

500

Dhairya Arora 6 years ago

500

Zara Naqvi 6 years ago

So silly question 500
  • 3 answers
Smaller than mahajanapata

Yogita Ingle 6 years ago

The word ‘janapada’ literally means ‘the land where the jana set its foot and settled down’. A janapada was formed when people settled down at a place and started living in settlements.

Nidhi Patil 6 years ago

Janapadas were large land owners
  • 1 answers

Rajeev Thakur 6 years ago

78.05%=nitrogen, 20.95%=oxygen,other 1%

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