Which of these organisms is a part of the group that produces all of the available energy in a food web?

a. fly

b. grass

c. mouse

d. sun

What is the acceleration due to gravity of the sun at the distance of the earth's orbit?

Which projection might you use to examine and compare population densities, using one view of the entire world

The skeletal system is made of bones that? Soft body organs and work with the body's? System

Minerals that can be cut and polished, giving them a beautiful appearance, are called

Which of the following physical features is located in both Mongolia and china

Which of the following areas would most likely have the greatest amount of surface runoff? low, flat plain sandy beach steep mountainside V-shaped valley

Which of the following is a reason why Hartsfield-Jackson International Airport provides so many jobs to Georgians? A) It is required to hire many people because it receives tax money for its operations.

Read the article titled "Giant Jellyfish Invasion." Why are these jellyfish invading oceans near China, and how might humans have caused this problem? (Site 1)

Originally the earth probably had this type of environment a) artic b) temperate c) greenhouse

Arable land is land: a. that has been destroyed in a natural disaster b. that has experienced severe soil erosion c. that is habitable d. that will grow crops