Answer:
A Wave the fumes from the test tube toward the nose with a hand and inhale
Explanation:
The answer is B.
Water in the form of vapor enter the atmosphere. The vapor accumulates in the atmosphere to form clouds. Once the clouds are heavy enough, the water in the form of droplets fall towards land or as rain. It could also be in the form of other precipitation such as snow or hail. As the sun hits the waters in the land, it causes the water to evaporate and the cycle continues.
Answer:
C
Explanation:
Membranes will allow and inhibit certain ions/molecules. I don't believe it can distinguish whether the molecules are harmful or beneficial!
"Positive feedback mechanisms lead to increased change" is the statement about <span>positive feedback mechanisms </span>among the choices given in the question that is not true. he correct option among all the options that are given in the question is the third option or option "c". I hope the answer has helped you.