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The layer of ozone gas absorbs ______ rays that come from the sun to the earth.
Concept: undefined >> undefined
Both ______ and ______ constituents are present in the soil.
Concept: undefined >> undefined
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Why is it said that the ozone layer is a protective shell of the earth?
Concept: undefined >> undefined
What will happen if microbes in the soil get destroyed?
Concept: undefined >> undefined
Match the following.
| Group ‘A’ | Group ‘B’ |
| (1) Carbon dioxide | (a) Generation of soil |
| (2) Oxygen | (b) Rain |
| (3) Water vapour | (c) Plants and food production |
| (4) Microbes | (d) Combustion |
Concept: undefined >> undefined
Name the following.
Constituents of the biosphere
Concept: undefined >> undefined
Name the following.
Fossil fuel
Concept: undefined >> undefined
The process of intake of food and utilising it for all life processes is called ______.
Concept: undefined >> undefined
All the substances in our food which are useful for various bodily processes are called ______.
Concept: undefined >> undefined
Carbohydrates and _______ provide _______ to our body.
Concept: undefined >> undefined
Radon is used in decorative lights.
Concept: undefined >> undefined
In the food pyramid, cereals are given the maximum space because they fulfill our ______ requirement.
Concept: undefined >> undefined
Answer in your own words.
Why are air, water, and land considered to be valuable natural resources?
Concept: undefined >> undefined
Spot the following in the table of vitamins and minerals.
The nutrient present in citrous fruits.
Concept: undefined >> undefined
Spot the following in the table of vitamins and minerals.
Vitamins/minerals present in milk.
Concept: undefined >> undefined
Spot the following in the table of vitamins and minerals.
Causes and symptoms of night blindness, scurvy, rickets, beriberi.
Concept: undefined >> undefined
Spot the following in the table of vitamins and minerals.
Foods required to prevent the above diseases.
Concept: undefined >> undefined
Spot the following in the table of vitamins and minerals.
Causes of anaemia.
Concept: undefined >> undefined
Spot the following in the table of vitamins and minerals.
Essential mineral for healthy bones and teeth.
Concept: undefined >> undefined
Spot the following in the table of vitamins and minerals.
Sensory organ affected due to the deficiency of Vitamin A.
Concept: undefined >> undefined
