Loss of Arctic ice affects the sustainability of human population negatively. Arctic ice helps cool the planet down as 80% of light that hits it is reflected. Extreme temperatures as well as a list of other affects of climate change hurt the sustainability of human populations.
Answer:
Today, one second is defined as “9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium 133 atom”. That's a mouthful.
C is the most likely answer to this question.
The answer is B.
If you put one plant in wet soil, and one plant in dry soil, you can prove or disprove your hypothesis as the plants grow.
Whaaat.. I don’t understand that language..