Tag: climate factors

In an ecosystem, green plants trap solar energy and convert it into sugars which are utilised by all the living organisms and also passed on to successive trophic levels. Thus, the correct answer is option A.

In an ecosystem plants produces their own food by utilising solar energy, water and carbon dioxide, which is then transfer to the successive trophic levels. Some of the minerals are locked in living systems as constituents of protoplasm. These minerals are returned to environment through the decomposition of death and decay of organisms.Thus, the correct answer is option B.

In an ecosystem, the ultimate source of energy is the sun. The solar energy is trapped by producers and converted to usable biochemical compounds like carbohydrates. These carbohydrates are passed on successively to higher trophic levels. Thus, the correct answer is option D.

An ecosystem consists of living things like producers, consumers and decomposers and nonliving things like air, water, land. The ultimate source of energy in an ecosystem is sun. The plants in presence of sunlight synthesize its food. From plants, the energy is transferred to primary consumers and secondary consumers and decomposers. 

Natural gas is a non-renewable source of energy that is made of hydrocarbons, primarily methane. Its usage is subjected to the exhaustion because its formation takes time. Sun, biomass wind are the renewable sources of the energy. Their usage does not result in their exhaustion.