Ecosystem and Biodiversity

Which one of the following is not a gaseous biogeochemical cycle in an ecosystem?

• Carbon cycle

• Phosphorous cycle

• Sulphur cycle

• Nitrogen cycle

Transfer of energy from source of plants through a series of organism is known as ________________

• a)       Food web

• b) Energy cycle

• c) Food chain

• d) Biological system

The type of ecosystem with the highest mean plant productivity is _______________

• a) Tundra

• b) Temperate grassland

• c) Desert

• d) Tropical rain forest

In ecosystem standing crop refers to________________

• All the green plants

• All the non living materials

• All living and dead animals

• All the living materials both animals and plants

An ecosystem which can be easily damaged but can be recovered after some time if damaging effect stops will be having ____________________

• a) High stability and high resilience
  
  

• b) High stability and low  resilience

• c)   Low stability and low resilience

• d)  Low stability and high resilience

Which ecosystem produce the highest annual net primary productivity?

• Tropical evergreen forest

• Tropical rain forest

• Tropical deciduous forest

• Temperate evergreen forest

____________is the term used to describe the variety of life found on Earth and all of the natural processes.

• Biodiversity

• Ecosystem

• Biosphere

• Ecology

Which of the following is not the value of biodiversity?

• a) Social use
  

• b) Aesthetical use

• c)   Environmental use

• d)  Moral

The biodiversity contained in the ecosystem provides forest dwellers with all their daily needs is______use value.

• a) Ethical and Moral

• b) Consumptive

• c) Aesthetical

• d) Social

The initiative of biodiversity assessment focuses on which ecosystem types:

• Forest

• wetland

• Marine

• All of the above