What do you need to know to become an astronaut?

In the african savanna, more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

What organ is the first to receive nutrients that have been absorbed from the digestive tract?

18. over time, how do sand dunes tend to migrate? a. perpendicular to the movement of the wind b. in the same direction as the wind blows c. toward the wind d. in random directions