1511. Which oneofgreenhouse gas? (1) Oxygen(2) Nitrogen(3) Carbon-dioxide(4) OzoneQ.45) Biggest planet of solar system is – A. Earth B. Mars C. Saturn D. Jupiter ✅ The correct answer is option D.
1512. Suppose if we measure the time lapse between the two Sunsets by sitting in the beach, from this we can estimate – A. The distance between the sun and the earth B. The depth of the ocean C. The radius of the earth D. The radius of the sun ✅ The correct answer is option C.
1513. The soil water which is of the greatest importance to the plant life is– A. Gravitational water B. Capillary water C. Hygroscopic water D. Combined water ✅ The correct answer is option B.
1514. When the earth is at the maximum distance from the Sun, it is called– A. Aphelion B. Perihelion C. Equinox D. Sidereal ✅ The correct answer is option A.
1515. The word `dendlitic’ is associated with— A. wind B. waves C. rivers D. glaciers ✅ The correct answer is option C.
1516. The significant quantity of upper soil is formed by – A. Igneous rock B. Sedimentary rock C. Metamorphic rock D. Biological degradation ✅ The correct answer is option B.
1517. Typhoons are common in the – A. Arctic Ocean B. Seas of China and Japan C. Mexican Gulf D. Indian Ocean ✅ The correct answer is option B.
1518. Precipitation in the form of a mixture of rain and snow is called – A. Drizzle B. Hail C. Sleet D. Snow ✅ The correct answer is option C.
1519. Which one of the four regions above the earth has smallest height (km.)? A. Stratosphere B. Mesosphere C. Thermosphere D. Troposphere ✅ The correct answer is option D.
1520. The rock that results from solidification of molten lava from a volcano is an example of which of the following? A. Igneous Rock B. Granite Rock C. Basalt Rock D. Magnetite ✅ The correct answer is option A.