1. The length of the days and nights is equal at the   South Pole   North Pole   Tropic of Capricorn   Equator   Hint Half-n-half Clue   2. The center of the earth is known as the   Core   Crust   Atmosphere   Hydrosphere   Half-n-half Clue   3. Stalactites and stalagmites consist of deposits of   Sodium Bicarbonate   Silica   Magnesium Carbonate   Calcium Carbonate   Half-n-half Clue   4. Coal is formed from   Rocks   Soil   Organic Matter   Lava   Half-n-half Clue   5. Natural hot water springs occurring in New Zealand, Italy and Iceland are known as   Fountains   Hot Bubbles   Geysers   Old Faithfuls   Half-n-half Clue   6. Greenhouse effect will lead to   Decrease in atmospheric pressure   An increase in the temperature   Greater rainfall   An increase in Oxygen Production   Half-n-half Clue   7. What is the name given to molten rocks that are erupted by a volcano?   Lava   Slate   Marble   Firestone   Half-n-half Clue   FREE PREVIEW: Last 9 Questions not a part of the free preview. Get Premium Membership to view all questions.