1. The shape of the earth is   Conical   Flat   Cubical   Spherical   Hint Half-n-half Clue   2. Gasoline is a non-renewable source of energy.   True   False   3. The length of the days and nights is equal at the   South Pole   North Pole   Tropic of Capricorn   Equator   Half-n-half Clue   4. The earth rotates from   South to North   West to East   East to West   North to South   Half-n-half Clue   5. Stalactites and stalagmites consist of deposits of   Silica   Sodium Bicarbonate   Magnesium Carbonate   Calcium Carbonate   Half-n-half Clue   6. Granite and quartz are igneous rocks.   True   False   7. Seismograph is the instrument used for recording earthquake shocks.   True   False