Why might ancient lake and sea beds be rich sources of fossils?

Northeastern china, north korea, northern japan containing coniferous forests, temperate grasslands, and agriculture, are all part of what climate zone? a. tropical desertb. desertc. humid subtropicald. humid continental

In the developed world, describe the changing role of women in agriculture.

Need this asap : ( which type of wetland is most likely found in warm, forested areas? bogs swamps salt marshes inland marshes