Which is a characteristic of a savanna?
question 2 options:

areas of thick forests

grasses with trees intermixed

layer of frozen soil

sand and rocky terrain

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

An easy way to calculate the amount of energy available at each level is to what?

What are the seven economic and social goals?