Of the solar energy coming into the Biosphere, what percentage of it is actually used in the photosynthesis? [IAS 2008]

Related MCQs

• Consider the following rivers: 1. Don 2. Syr Darya 3. Volga 4. Ural Which of the above rivers flow into the landlocked Caspian Sea? [IAS 2008]
• Which of the following statements is/are correct with regard to Milky Way? 1. It is a spiral galaxy. 2. The solar system resides in one of its spiral arms. Select the correct answer using the codes given below [NDA 2008]
• The largest amount of reflection of the solar radiant energy which is reflected back into space before reaching the earth's surface is due to:
• Which of the following planets of the solar system has the longest day? [IAS 2003, CDS 1994]
• Which one of the following statements is correct with reference to our solar system? [IAS 2002]
• The Solar eclipse achieves totality only in limited geographical regions because: [IAS 1993]
• In order of their distances from the Sun, which of the following planets lie between Mars and Uranus? [IAS 2008]
• Consider the following statements: 1. The albedo of an object determines its visual brightness when viewed with reflected light. 2. The albedo of Mercury is much greater than the albedo of the Earth. Which of the statements given above is/are correct? [IAS 2008]
• Consider the following statements: 1. Nearly 99 percent of the total mass of the atmosphere lies within 30 km of the Earth's surface. 2. The proportion of ozone in the atmosphere increases to a maximum at about 60 km from Earth's surface. Which of the statements given above is/are correct? [IAS 2008]
• The albedo of which one among the following is the highest? [IAS 2008]