The primary producers in freshwater and salt water ecosystems are heterotrophs. true or false

Latitude (more than longitude) is closely related to: A. time b. Greenwich c. the poles d. climate

What was the cause of flooding in the 1993 upper Mississippi River flood? Select one: A. Heavy snowmelt in Canada sent large volumes of water down the river in the spring. B.

In what ways did Mexico's pre-Columbian Indian heritage shape its culture today?

Which principle of relative age dating is important for determining the relative age of igneous rock that has intruded into overlying rock?

What were some of the problems with ancient maps?

When were the chocolate hills discovered?

maria receives a cake order for charity event from a company. She uses 375g of flour, 250g of cocoa powder and 300g chocolate for a one kilogram cake. If the company orders a 7kg cake, what is the ratio of each of the ingredients that she needs?

How many states are north of the equator

Explain how the types of mountain landforms are related to one another.

Explain how natural actions such as weathering, erosion (wind, water and gravity), and soil formation affect Earth's surface.