GEOGRAPHY MCQS SET 100

GEOGRAPHY MCQS SET 100

991) The organisms who can synthesise their food by interacting with their environment are called
A) heterotrophs
B) autotrophs
C) self dependent
D) consumers

Answer: autotrophs
   
992) The amount of energy as it passes on from one trophic level to other in an ecosystem
A) increases
B) decreases
C) remains constant
D) there is no definite relation

Answer: decreases
   
993) In which of the following the maximum plant diversity is found?
A) Tropical evergreen forests
B) Tropical moist deciduous forests
C) Sub tropical mountain forests
D) Temperate moist forests

Answer: Tropical evergreen forests
   
994) The population of organisms at successive trophic levels is plotted as horizontal bars one above the other, it produces a
A) square shape
B) rectangular shape
C) pyramidal shape
D) highly irregular shape

Answer: pyramidal shape
   
995) Consider the following
1. Bioaccumulation is the increase in concentration of a pollutant from the environment to the first organism in a food chain.
2. Bio magnification is increase in concentration of a pollutant from one link in a food chain to another.
Which of the statements given above is/are true?
A) Only 1
B) Only 2
C) Both 'a' and 'b'
D) None of the above

Answer: Both 'a' and 'b'

996) The ecological pyramid of numbers or biomass has a lesson for us that we should have ______ food habits.
A) non vegetarian
B) vegetarian
C) high consumption
D) intensive

Answer: vegetarian
   
997) The variability among living organisms from all sources including terrestrial, marine and other ecosystems and the ecological complexes of which they are part which includes diversity within species, between species of ecosystems refers to
A) geographical diversity
B) zoological diversity
C) ecological diversity
D) biological diversity

Answer: biological diversity
   
998) A balanced ecosystem is one in which the
A) number of organisms at all levels is equal.
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.

Answer: amount of energy synthesized and utilized is equal.
   
999) Which one is supposed to be the most stable environment?
A) Tropical rainforest
B) Temperate grasslands
C) Hilly regions
D) Deep sea regions

Answer: Deep sea regions
   
1000) Of the solar energy coming into the Biosphere, what percentage of it is actually used in the photosynthesis?
A) Less than 1%
B) Between 1% and 1.5%
C) Between 1.5% and 2%
D) More than 2 %

Answer: Less than 1%