It lets materials enter and exit like airport security
The Great Plains have a continental climate. Much of the plains experience cold winters and warm summers, with low precipitation and humidity, much wind, and sudden changes in temperature. More rainfall occurs in summer than in winter, except in some of the northwestern parts of the Great Plains.
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C)Human activity
Your welcome :)
Make an appointment with your doctor if you're feeling fatigued for unexplained reasons. Some anemias, such as iron deficiency anemia or vitamin B-12 deficiency, are common.
Fatigue has many causes besides anemia, so don't assume that if you're tired you must be anemic. Some people learn that their hemoglobin is low, which indicates anemia, when they go to donate blood. If you're told that you can't donate blood because of low hemoglobin, make an appointment with your doctor.
1) it stops the water from reaching the land and into the homes and cause flooding
2) it regulates the food chain and helps animals build habitats and riase their babies
3) helps us create power by using dams to prevent the water from pouring out
Hope this helped :)
Have a great day
