экология 40Quiz

The main reason for the instability of ecosystems is:

• imbalance in the circulation of substances

• adverse environmental conditions

• lack of food resources

• an excess of some species

• none of the above

A relatively stable state of an ecosystem, in which a balance is maintained between organisms, as well as between them and the environment, is called:

• climacteric state

• succession

• fluctuation

• integration

• none of the above

Which of the following gases is not a greenhouse gas?

• CO

• O3

• CH4

• H2O vapour

• none of the above

One biotic factor that limits the carrying capacity of any habitat is the

• activity of decomposers

• level of atmospheric oxygen

• availability of water

• amount of soil erosion

• none of the above

An organism that uses energy to produce its own food supply from inorganic compounds is called a(an)

• autotroph

• heterotroph

• consumer

• detritivore

• bacteria

An organism that cannot make its own food is called a(an)

• heterotroph

• autotroph

• chemotroph

• producer

• consumer

Carbon cycles through the biosphere in all of the following processes EXCEPT

• transpiration

• photosynthesis

• burning of fossil fuels

• decomposition of plants and animals

• adsorption

The first listed of the 12 Principles of Green Chemistry is?

• prevent waste

• catalysis

• atom economy

• benign solvents

• reduce derivatives

The following is often referred to as the universal solvent and is a preferred green solvent?

• water

• methanol

• ethyl acetate

• benzene

• formalin

Bio-polymers exemplify Green Chemistry Principle # 10, which is?

• design for degradation

• catalysis

• prevent waste

• benign solvents and auxiliaries

• atom economy