Question Text
Question 3 :
Rate of storage of organic matter not used by heterotrophs is termed as<span><br></span>
Question 8 :
Total amount of energy trapped by green plants in food is called as
Question 9 :
Assertion: Amount of organic matter synthesised by producers per unit time and per unit area during the process of photosynthesis is referred to as net primary productivity.
Reason: Primary productivity is usually high and sustained throughout the year in temperate areas due to abundance of sunlight.
Question 10 :
Assertion: The process of nitrification involves the decomposition of proteins of dead plants and animals, and nitrogenous wastes like urea, uric acid, etc. of animals of ammonia.
Reason: Nitrogen cycle is a sedimentary cycle.
Question 13 :
Assertion: Tropical rain forests are disappearing fast from developing countries such as India
Reason: No value is attached to these forests because these are poor in biodiversity.
Question 15 :
In an ecosystem, the rate of production of organic matter during photosynthesis is termed as
Question 16 :
Assertion: Ecosystem is the structural and functional unit of biosphere consisting of abiotic and biotic components which interact with each other and maintain a balance in nature.
Reason: In an ecosystem, energy and matter are continuously exchanged between living and non-living components.
Question 17 :
Assertion: Green plants only show primary productivity.
Reason: Chemosynthesizers are responsible for primary productivity also.
Question 18 :
Assertion: Primary productivity is shown by green plants only.
Reason: Primary productivity is also shown by chemosynthesizers.