The ozone layer began depleting sharply in the 1980s due to CFCs and other ozone-depleting substances, not merely the natural formation of ozone. While oxygen atoms do combine with O₂ to form ozone, this process does not explain the rapid ...
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A human child has all the basic features of humans, such as a brain, limbs, and facial structure. However, it does not look exactly like its parents; genetic variation ensures that each child shows differences in appearance and traits. The ...
Decomposers in an ecosystem break down dead plants and animals, converting complex organic materials into simpler inorganic forms like carbon dioxide, water, and minerals, which can then be reused by producers in the ecosystem. Correct answer: (C) Download cbse sample paper ...
The correct statements about ozone depletion are: (i) Chlorofluorocarbons (CFCs) are the main cause. (ii) Ozone depletion increases harmful ultraviolet (UV) radiation reaching Earth. (iii) The ozone hole is prominently observed over Antarctica. Ozone depletion does not protect humans from ...
The cross involves RRyy × rrYY. All F1 offspring inherit the RrYy genotype. Since R (round) is dominant over r (wrinkled) and Y (yellow) is dominant over y (green), all F1 seeds will be round and yellow in appearance. Correct ...