Select the correct definition of a compound's boiling point. a. the point at which the temperature of the compound exceeds the temperature of its surrounding environment
b. the point at which the temperature of the compound in degrees Celsius exceeds the atmospheric pressure in torr
c. the temperature at which the compound's vapor pressure falls below the pressure of its surrounding environment
d. the temperature at which the compound's vapor pressure is equal to the pressure of its surrounding environment

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

they are made of gases.

they have a spherical shape.

they make energy through fusion.

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence