Wetlands occurring in areas with a large amount of trees are most likely
a. swamps
b. bogs
c. marshes
d. none of the above

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

Plants in the tundra biomes have had to adapt to live long periods of time without a. cool temperatures b. sunlight c. oxygen d. water

Name the two rivers that run through the fertile crescent. how were the rivers both positive and negative to societies of the fertile crescent?