Science [2 Mark Questions]

a. 10 units of energy will pass from grass to goat.
b. 1 unit of energy will pass from goat to tiger.
c. Lindeman's Ten percent law operates during the transfer of energy from grass to goat to tiger.

Man-made ecosystem are called artificial ecosystem. For example- Garden, Aquarium.

Pesticides are poisonous chemical substances, which are sprayed over crop plants to protect them from pests and diseases by either killing them or stopping their growth. These chemical pesticides mix up with soil and water from where they are absorbed by the growing plants along with water and other minerals and get deposited in plant tissues. When herbivorous animals eat plants then these poisonous chemical pesticides go into their bodies through the food chain and further when they are consumed by carnivores, then the pesticides get transferred to their bodies. In this process of transfer of food through food chains these harmful chemicals get concentrated at each subsequent trophic level and their concentration keep on increasing (Biomagnification) with increasing trophic level.