Which of the following statements are correct?
(i) Some animals help us in keeping our environment clean. They consume dead animals and dispose of them off. They are called scavengers.
(ii) Quinine, a forest product obtained from the bark of the Cinchona tree, is widely used to treat typhoid.
(iii) Van Mahotsava is a festival of cutting down trees.
(iv) World Forest Day is celebrated in 21st March every year.
Important Questions on Natural Resources and their Conservation
The given pie charts show the composition of three types of soil samples, X, Y and Z. Which of the following is correct regarding these?
Refer to the given flow chart showing the flow of energy in a food chain.
Select the correct statement regarding and
(i) helps in cleaning the environment as well as recycling nutrients.
(ii) The role of comes when plants and animals die.
(iii) operate at all levels of the food chain.
(iv) eats other animals and get its food indirectly from
Statement 1: Forests prevent soil erosion.
Statement 2: Canopy formed by crown of leaves of forest trees reduces the force and speed of raindrops.
(i) Microorganisms act upon the dead plants to produce humus.
(ii) Autotrophs lie at the base of a food pyramid.
(iii) Large scale cutting of trees is called afforestation.
(iv) Branched part of a tree above the stem is called the crown.
| (i) | (ii) | (iii) | (iv) | |
| (A) | ||||
| (B) | ||||
| (C) | ||||
| (D) |
Refer to the given figure of the water cycle and answer the following questions.
In the given figure if (1) represents the river water, then what does (4) represent?
Refer to the given figure of water cycle and answer the following questions:
Which of the following represents the process involved in the formation of dew?
(P) The branchy part of a tree above the trunk is known as the ___of the tree.
(Q) The branches of tall trees look like a roof over the other plants. This is known as ___.
(R) The ___ is covered with a layer of dead and decaying leaves, fruits, seeds, twigs and herbs.
(S) In rainforests, the vegetation that grows under the shade of the canopy is known as the ___.
Select the option that correctly fills up the blanks in any two statements.
| (A) | (Q) - Crown | (S) - Forest floor |
| (B) | (P) - Crown | (S) - Understorey |
| (C) | (Q) - Canopy | (R) - Understorey |
| (D) | (P) - Canopy | (R) - Forest floor |
