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Daily-static-mcqs 09 Mar 2024
Q1:
Consider the following statements: Statement-1: The humidity of the air is expressed as relative humidity. Statement- II: Relative humidity is the amount of moisture in the air in percentage that keeps the air in a saturated state at that temperature. Which one of the following is correct in respect of the above statements?
A: Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I
B: Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I
C: Statement-I is correct but Statement-II is incorrect
D: Statement-I is incorrect but Statement-Il is correct
Answer: B
Explanation:
Air humidity is one of the various forms of water in nature. The moisture in the atmosphere in the form of vapor is called humidity. The humidity of the air is expressed as relative humidity. Relative humidity is the amount of moisture in the air as a percentage that keeps the air in a saturated state at that temperature, that is, relative humidity is a combination of the actual humidity and how much more moisture can be in the air at that temperature. There is a ratio. Humidity is affected by the intensity of solar radiation, temperature, altitude, wind, vegetation and soil water level. High temperature increases the ability to absorb moisture from the air and reduces relative humidity. Low temperature, ability to absorb air moisture By reducing, the relative humidity increases. Hence, option (b) is correct.
Q2:
Consider the following statements about bioluminescent organisms: 1. The color of light emitted by organisms depends on their chemical properties. 2. In some organisms, bioluminescence acts as a defense mechanism to protect them from other organisms. 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: C
Explanation:
Bioluminescence is the ability of organisms to emit light. It is a part of organisms' adaptation for survival. Bioluminescent organisms are commonly found in marine environments, but they are also found on terrestrial environments. The color of light emitted by organisms depends on their chemical properties. Hence, statement 1 is correct.
Bioluminescence in some organisms helps protect them from predators. Bioluminescence attracts insects, which helps spread the spores. It may also be a mechanism to protect the organism from frugivorous (or fruit-eating) organisms. Hence, statement 2 is correct.
Q3:
What major global issues did the leaders fail to address at the Rio Summit in Brazil in 1992?
A: Economic reforms and trade policies
B: Climate change and global warming
C: Violation of human rights
D: Technological progress in agriculture
Answer: B
Explanation:
In Brazil in 1992 , world leaders failed to reach a consensus due to the strong stances of industrialized and developing countries on climate change and global warming. The United States has long sided with the need for scientific research on global warming and climate change, with business interests taking precedence over this global environmental issue. Hence, option (b) is correct.
Q4:
In which geographical region of India can the Myristica Swamp Treefrog be found?
A: North East India
B: Aravali Hills
C: Western Ghats
D: Shivalik range of Himalayas
Answer: C
Explanation:
The Myristica swamp treefrog is a rare arboreal species of the Western Ghats. Its scientific name is Mercurana myristicapalustris. It was first recorded north of Shencottah Gap in the Vazhachal Reserve Forest in Thrissur district of Kerala.
Q5:
The largest contributor to the greenhouse effect is –
A: Methane
B: Water Vapor
C: Carbon Dioxide
D: Nitrous Oxide
Answer: B
Explanation:
Water vapor is Earth's most abundant greenhouse gas. It is responsible for about half of the Earth's greenhouse effect. Hence, option (b) is correct.
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