Geography - Questions and Answers, General Study (GK)

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611.

What term denotes the organisms getting their food from others?

(a)Heterotrophs

(b)Autotrophs

(c)Producers

(d)Synthesizers

Comment

Answer is: A

612.

A balanced ecosystem is one in which the

(a)number of organisms at all levels is equals

(b)amount of energy synthesized and utilized is equal

(c)amount of biomass at all trophic levels is equal

(d)organisms are interdependent on each other

Comment

Answer is: B

613.

Of the solar energy coming into the Biosphere, what percentage of it is actually used in the photosynthesis?

(a)Less 1%

(b)Between 1% and 1.5%

(c)Between 1.5 and 2%

(d)More than 2%

Comment

Answer is: A

614.

Under optional conditions, the fruit fly (Drosphilia) is capable of producing a new generation every two weeks. This ability is referred to as the .................. of the species.

(a)Carrying capacity

(b)Niche

(c)Biotic Potential

(d)Optimal yield

Comment

Answer is: C

615.

An organism's "trophic" level refers to

(a)the rate at which it uses energy

(b)where it lives

(c)what it eats

(d)whether it is early or late in ecological succession

Comment

Answer is: C

616.

The niche of an animal is best defined as

(a)the number of individuals of the species, the environment will support

(b)the same as its habitat

(c)all the ways an animal fits into its environment

(d)the specific part for which organism is best suited

Comment

Answer is: D

617.

The biome concept illustrates

(a)dominant plant communities

(b)vocational aspect of ecosystem and plant and animal diversity

(c)old field succession

(d)animal diversity

Comment

Answer is: B

618.

Name the term commonly used for a technology that renders seeds sterile after the first generation?

(a)Terminator Technology

(b)Sterile Technology

(c)Killer Technology

(d)None of these

Comment

Answer is: A

619.

When one animal is used to suppress another, it is called this. e.g.. if snakes are encouraged in an area, the rodent population will be controlled. What is the term used?

(a)Technical control of pests

(b)Pest control

(c)Botanical control of pests

(d)Biological control of pests

Comment

Answer is: D

620.

This naturally occurring element in the rice husk makes it termite resistant

(a)Silicon

(b)Phosphate

(c)Nitrates

(d)Floride

Comment

Answer is: A

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Geography - Questions and AnswersPage 62

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