7 Answer the following. (any 5)
(I) What type of garbage is thrown in green bins?
(II) Explain the term "vermicomposting".
(III) What is the composition of air?
(IV) When does a drought occur?
(V) Name the major nutrients.
(VI) Write the functions of a stem or water?
Answers
Answer:
1.The green bins are used for collecting kitchen and other plant or animal wastes. This type of waste rots completely when buried in the soil. It includes wastes like plate scrapings, vegetable peelings, meat and bones, cooked and uncooked food, cut flowers, etc.
2.The method of making compost from kitchen garbage by using redworms is called vermicomposting.
3.Air is a mixture of nitrogen, oxygen, carbon dioxide, water vapors, and some other gases. It also contains dust particles.
4.The scarcity of water in a region due to very less or no rainfall for a long time leads to drought in that region.
5.The major nutrients in our food are
Carbohydrates
Proteins
Fats
Vitamins
Minerals
6.The primary functions of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products by photosynthesis; and to transport these products from the leaves to other parts of the plant, including the roots.
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Answer:
1.the garbage which can be decomposed or natural waste are thrown in green bins.
3 in air there is about 78% of nitrogen, 21% of oxygen and left 1% is of other greenhouse gases as well as inert gases.
4. where there is shortage of water there the drought occurs. Drought mostly occurs in summer season and in the place of well dried area.
5. Stem helps in the supply of water. when roots absorbs water they transport it to stem and then stem supply it to other parts of plants. it also transports food to the other parts of plant from the leaf.
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