How did the russian revolution impact the world war 1

Why are mangrove swamps an important part of the ecosystem of west africa?

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

Dentify one advancement from the industrial revolution that had a significant impact on agriculture, and discuss the benefits this advancement had on the industry.