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Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers:

Methane
Nitrous oxide
Ozone
Ammonia
Explanation:

Ozone layer protects us from UV rays that can be acarcinogen and cause skin cancer.
Additional Questions

Joint Forest Management Concept was introduced in India during:

Answer

Which one of the following is the starter codon?

Answer

The term ecosystem was coined by:

Answer

In a testcross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates:

Answer

Water-soluble pigments found in plant cell vacuoles are:

Answer

Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?

Answer

Mitochondrial and chloroplast are:
(a) semi-autonomous organelles.
(b) formed by the division of pre – existing organelles and they contain DNA but lack protein synthesizing machinery.
Which one of the following options is correct?

Answer

Which of the following is not a feature of the plasmids?

Answer

A plant in your garden avoids photorespiratory losses, has improved water use efficiency, shows high rates of photosynthesis at high temperatures and has improved the efficiency of nitrogen utilisation. In which of the following physiological groups would you assign this plant?

Answer

Emerson’s enhancement effect and Red drop have been instrumental in the discovery of:

Answer
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