Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): Nigella is not a member of the family Characeae.

Reason (R): Nigella is a genus of angiosperms (flowering plants) known for producing black cumin seeds, whereas Characeae is an algal family.

In the light of the above statements, choose the correct answer:

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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.

Choose the correct answer from the options given below:

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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.

Choose the correct answer from the options given below:

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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.

Choose the correct answer from the options given below:

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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.

Choose the correct answer from the options given below:

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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.

Choose the correct answer from the options given below: