Hurricanes
Earthquakes
Weathering
B. the more heat escapes from the Earth
C. the more UV rays reach the Earth
D. the warmer the Earth will get
(2) parts per million
(3) grams per Kelvin
(4) joules per gram
Answer:
(2) parts per million
Explanation:
Concentration of a solution can be expressed in terms of parts-per-million (ppm).
ppm is usually used in the context of measuring very small concentrations particularly the amount of contaminants. It represents 1 part of the contaminant in 100000 parts of the total.
It is expressed as:
1 ppm = 1 mg / L
1 ppm = 1 mg/ Kg