Giúp em với ạ, em chưa biết cách làm

Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.

More solar radiation is absorbed by earth’s surface than by

When flexing to a reflective style, one should be specific, brief and to the point, and maintain a fast and decisive pace?