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Question

Mark the following statements true or false. Rewrite the false statements correctly.
(a) Forests help in soil and water conservation.
(b) Afforestation destroys forests.
(c) Plaints, the producers in the food chain, are heterotrophs.
(d) the ultimate source of energy for all living things are green plants.
(e) Killing plants and animals indiscriminately destroys the balance in nature.
(f) Scavengers cause decomposition of dead animals.
(g) Sheep are omnivores because they eat grass and they in turn are eaten by man.
(h) All living and non-living things in a particular area and their relationship with each other forms the ecosystem.


Solution

(a) True.

(b) False.
Deforestation destroys forests. Afforestation maintains forest.

(c) False.
Plants, the producers in the food chain, are autotrophs.

(d) False.
The ultimate source of energy for all living things is sun.

(e) True.

(f) False.
Decomposers cause decomposition of dead animals into humus, which contain nutrients for plants.

(g) False.
Sheep are herbivores because they eat grass and they in turn are eaten by men.

(h) True.

Science
Active Science
Standard VII

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