Match the enzymes in LIST-I with their specific metallic activators/co-factors in LIST-II.

LIST-I (Enzyme)	LIST-II (Activator/Co-factor)
A. Nitrogenase	I. Magnesium (Mg²⁺)
B. RuBisCO	II. Molybdenum (Mo)
C. Alcohol Dehydrogenase	III. Iron (Fe)
D. Ferredoxin	IV. Zinc (Zn²⁺)

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#Question id: 40150

#Environmental Science

Q. Apart from Methionine (AUG), which other amino acid is coded by only a single codon?

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#Question id: 40151

#Environmental Science

Q. Identify the correct statements regarding the thermal structure of the atmosphere:

A. Temperature decreases with altitude in the Mesosphere. 

B. The Thermosphere is the coldest layer of the atmosphere.

 C. The Stratosphere contains the ozone layer, which causes temperature to increase with altitude.

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#Question id: 40152

#Environmental Science

Q.Consider the following statements about atmospheric gases:

A. Nitrogen is the most abundant gas in the Earth's atmosphere.

 B. Water vapor concentration is uniform throughout the entire atmosphere.

 C. Carbon dioxide is a major greenhouse gas responsible for trapping heat.

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#Question id: 40153

#Environmental Science

Which of the following statements correctly describes the boundaries between atmospheric layers?

A. The Tropopause height is constant across the globe. 

B. The Stratopause separates the Stratosphere and the Mesosphere.

 C. The Mesopause is the boundary where the temperature is the lowest.

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#Question id: 40154

#Environmental Science

Q.Identify the correct statements regarding atmospheric pressure:

A. Atmospheric pressure increases exponentially with altitude.

 B. Approximately 50% of the atmosphere's mass lies below 5.6 km. 

C. Pressure decreases more rapidly near the surface than at higher altitudes.

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#Question id: 40155

#Environmental Science

Which of the following statements about Lapse Rates are true?

A. The Environmental Lapse Rate (ELR) is always constant at 6.5°C/km. 

B. A negative lapse rate (temperature increasing with height) is called an inversion. 

C. The Dry Adiabatic Lapse Rate (DALR) is approximately 9.8°C/km.

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