Explain how local environmental changes can have global effects.

Volcanic irruption is most likely to be violent when a) volcanoes near to the sea b) the neck of the volcano is sealed by a plug c) the lava is viscous d) the lava reaches the surface through a fissure e) the volcano is on the ocean floor

Which country is currently the most populated country in the world? a. india b. china c. mongolia d. indonesia

About 140,000 japanese died in this japanese city when americans dropped an atomic bob at the end of world war ii