1) What percentage of the Earth's atmosphere is nitrogen gas? a) 21% b) 1% c) 0.04% d) 78% 2) What layer of the Earth's atmosphere is closest to the ground? a) Stratosphere b) Troposphere c) Mesophere d) Thermosphere 3) Which of these is NOT a natural impact on the Earth's environment? a) Damage from a tornado b) Flooding from a storm c) Pollution from a factory d) Ash from a volcano 4) Where do Earthquakes occur? a) Fault lines b) Deserts c) Earth's core d) Volcanoes 5) What percentage of the Earth's atmosphere is oxygen gas? a) 15% b) 24% c) 21% d) 78% 6) Which of the following items is NOT man-made? a) paper b) plastic c) metal d) oil

Earth and Environment Quiz

by Anonymous
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