Answer:
The bonds between the molecules of the plastic bottle become weaker as the altitude decreases.
Answer:
1015.92 cmH₂O
Explanation:
The pressure of a fluid (liquid or gas) can be measured by the force that it does in a column of a standard liquid. When the liquid is the mercury, the pressure is measured in units of Hg, and when the column is filled with water, the value is obtained in units of H₂O.
The value depends on the density and the specific weight of the liquid. To convert mmHg to cmH₂O:
1 mmHg ----------- 1.36 cmH₂O
747 mmHg ------ x
By a simple direct three rule:
x = 1015.92 cmH₂O
Answer:
They first appeared in the fossil record around 66 million years ago, soon after the Cretaceous–Paleogene extinction event that eliminated about three-quarters of plant and animal species on Earth, including most dinosaurs.
Explanation:
