GEOGRAPHY MCQS SET 111

GEOGRAPHY MCQS SET 111

1101) Pick the correct sequence of sulphur cycle.
1. Oxidation of H2S
2. Reduction of sulphate to sulphide
3. Incorporation of sulphide into organic compound
4. Mineralisation of organic sulphur into organic forms
A) 4,1,2,3
B) 1,2,3,4
C) 3,1,4,2
D) 1,4,2,3

Answer: 4,1,2,3
   
1102) Consider the following statements
1. Atmospheric nitrogen has limited availability for biological use, leading to a scarcity of usable nitrogen in many types of ecosystems.
2. In plants, much of the nitrogen is used in chlorophyll molecules, which are essential for photosynthesis and further growth.
Which of the statements given above is/are incorrect?
A) Only 1
B) Only 2
C) Both 1 and 2
D) Neither 1 nor 2

Answer: Neither 1 nor 2
   
1103) Which among the following pairs is not correctly matched?
A) Detritivores: Consume tissues of dead animal and organic waste
B) Omnivores: Consume both consumers as well as producers
C) Decomposers: Breaks down detritus through digestion
D) Tertiary consumers: Relies on energy from chemicals which they get from inorganic material

Answer: Detritivores: Consume tissues of dead animal and organic waste
   
1104) Assertion (A) All the solar energy entering into the living system through the producers goes back into the non-living world.
Reason (R) At each stage of energy transfer. some amount of energy is lost from the food chain.
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true, but R is not the correct explanation of A
C) A is true. but R is false
D) A is false. but R is true

Answer: Both A and R are true, but R is not the correct explanation of A
   
1105) Assertion (A) In oligotrophic lakes. high concentration of nutrients results in algal blooms. Reason(R) : A higher concentration of nutrients results in higher organic productivity
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true, but R is not the correct explanation of A
C) A is true. but R is false
D) A is false. but R is true

Answer: A is false. but R is true

1106) Consider the following statements and choose the correct answer from the codes given below
1. Soil erosion is the destruction of the
upper layer of the soil by natural factors.
2. General erosion is one when there is 25% less erosion of the land soil.
3. Sheet erosion is caused when the upper fertile layer of the land is eroded by air or water.
A) 1 and 2
B) 2 and 3
C) 1 and 3
D) All of these

Answer: 2 and 3
   
1107) Atmospheric ozone layer which protects us from UV-B and C is getting depleted most
by addition of
A) chlorofluorocarbon
B) carbon monoxide
C) carbon dioxide
D) sulphur dioxide

Answer: chlorofluorocarbon
   
1108) Which one of the following pollutes the air of a big city?
A) Copper
B) Chromium
C) Lead
D) Calcium

Answer: Lead
   
1109) Consider the following statements with reference to the Montreal Protocol
1. The Ministry of Forest and Environment has drafted regulations in 1998 with the objective of phasing out CFCs and other ODS.
2. According to the regulation. manufacturing of mobile air conditioner were to be phased out till 2003.
3. India will phase out all the other ODS by 2010.
Which of the statements given above is/are correct?
A) 1, 2 and 3
B) Only 1
C) Only 2
D) Only 3

Answer: 1, 2 and 3
   
1110) Ozone layer above the surface of Earth provides a shield against
A) X rays
B) Ultra-violet rays
C) Gamma rays
D) infra red rays

Answer: Ultra-violet rays