When the temperature of a gas decreases at constant volume, its
a. pressure increases.
b. mass increases.
c. pressure decreases.
d. particles move faster.

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

In the first law of thermodynamics, triangle e=q-w, what does q stand for

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)