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84. Consider the following statements:
1.Escape velocity from the surface of the earth is slightly more at the equator than at the poles.
2.The earth is rotating and its equatorial radius is more than the polar radius. Which of the above statements is/are correct?
|Answer : Option B|
90. The red algae are able to grow at greater depths in the sea than any other photosynthetic organism. What could be the reason/s?
1.The chlorophyll found in red algae is very efficient in absorbing all forms of light making it possible for them to photosynthesize at such depths
2.Their chloroplast structure is such that it makes them absorb the dimmest light available at such depths
3.The phycobilin pigments that they share with bluegreen algae efficiently absorb the green, blue, and violet light that penetrates great depths Which of the above is/are the correct reason/s?
|Answer : Option C|
|Organisation of Living Body|