Answer:
B
Explanation:
I've had this question before got it right.
They lower the average density of their body; because of the air it feels like a slight decrease in the weight.
Explanation:
algea bottom of foodchain with water worms and mice?
Answer: Several types of evidence supported Hess's theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves. This evidence led scientists to look again at Wegener's hypothesis of continental drift.
Explanation:
