Astream has an elevation of 1,000 meters. it ends in a lake that has an elevation of 300 meters. if the lake is 200 kilometers away from the source, what is the average gradient of the stream?
gradient = change in value / change in distance

When volcanoes erupt, magma (hot, molten rock) rises toward the surface of the earth. as magma cools, solid rock forms. this rock contains substances from the interior of the earth. which of the following natural resources is likely to be plentiful near subduction zones where volcanic activity has occurred in the past?

Venezuela’s economy relies most heavily on which of the followingvenezuela’s economy relies most heavily on which of the following? a. oil reserves in places such as the eastern llanos b. cattle ranching in the grasslands c. fertile farmland in the andean highlands d. coffee plantations in mountainous areas

Identify the type of weathering seen in each picture ? chemical weathering mechanical weathering