What form (ore, salt, native metal) is mined for Aluminum?
(please attach sites that explain this if you can)

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

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

Which type of respiration takes place when there is no oxygen present