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Mcqs MBBS Exams India
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(Single Best Answer) Question 1421: Consider the following statements:

1. Carbon dioxide is released from the interior of the Earth during volcanic eruption

2. Carbon dioxide corrodes the metal surfaces

Which of the statements given above is / are correct ?
A) 1 only
B) 2 only
C) Both 1 and 2
D) Neither 1 nor 2
Answer (Select an option above to get the answer):
(Single Best Answer) Question 1422: In which one of the following types of forest is teak a dominant tree species ?
A) Tropical rain forest
B) Tropical deciduous forest
C) Tropical thorn and scrub forest
D) Temperate forest with grasslands
Answer (Select an option above to get the answer):
(Single Best Answer) Question 1423: Among the following regions of India, which one receives the highest annual average monsoon rainfall from June to September ?
A) Gangetic West Bengal
B) Eastern Uttar Pradesh
C) Western Uttar Pradesh
D) Punjab
Answer (Select an option above to get the answer):
(Single Best Answer) Question 1424: Other than nitrogen and oxygen, which one of the following is the most abundant gas in the Earths atmosphere ?
A) Argon
B) Carbon dioxide
C) Hydrogen
D) Methane
Answer (Select an option above to get the answer):
(Single Best Answer) Question 1425: Which of the following parts / spectra of solar radiation is / are mostly absorbed by the leaves of green plants ?
A) Infrared
B) Red and Blue
C) Violet, indigo and orange
D) Ultraviolet, green and orange
Answer (Select an option above to get the answer):
(Single Best Answer) Question 1426: Rayon fibre is made from ?
A) Cellulose
B) Isoprene
C) Polyethylene
D) Polyvinyl chloride
Answer (Select an option above to get the answer):
(Single Best Answer) Question 1427: Consider the following:

1. Ethylene dibromide

2. Potassium meta-bisulphate

3. Sodium benzoate

Which of the above is / are used as food preservatives ?
A) 1 and 2 only
B) 3 only
C) 2 and 3 only
D) 1, 2 and 3
Answer (Select an option above to get the answer):
(Single Best Answer) Question 1428: Which one of the following is an appropriate description of mangrove plants ?
A) Large wood-yielding trees of the tropical forests
B) Plants in marshy areas with breathing roots
C) Succulent plants that can thrive in arid / desert areas
D) Vast grassland areas interspersed with deciduous trees and thorny bushes
Answer (Select an option above to get the answer):
(Single Best Answer) Question 1429: Tissue culture technique can be used for

1. developing virus - free plants

2. multiplication of elite genotypes of useful trees

3. production of secondary metabolites of plants

Select the correct answer using the code given below:
A) 1 only
B) 2 and 3 only
C) 1 and 3 only
D) 1, 2 and 3
Answer (Select an option above to get the answer):
(Single Best Answer) Question 1430: Which group of algae can provide nitrogenous nutrients to paddy cultivation under natural field conditions ?
A) Blue-green algae
B) Brown algae
C) Green algae
D) Red algae
Answer (Select an option above to get the answer):