1. The earth rotates from   East to West   North to South   West to East   South to North   Hint Half-n-half Clue   2. Which of the following is a main component of common glass?   Marble   Sand   Water   Powdered Mica   Half-n-half Clue   3. Gasoline is a non-renewable source of energy.   True   False   4. Solar Energy is a   Very limited source of energy   Non Renewable Source of Energy   Renewable Source of Energy   Polluting Source of Energy   Half-n-half Clue   5. The center of the earth is known as the   Hydrosphere   Atmosphere   Crust   Core   Half-n-half Clue   6. The length of the days and nights is equal at the   North Pole   Equator   Tropic of Capricorn   South Pole   Half-n-half Clue   7. Which of the following elements is a chemical constituent of sand particles?   Silicon   Carbon   Iron   Sodium   Half-n-half Clue