3. Inside a larger glass box, there is plenty of moist soil, a water tank with drip irrigation, and the seed of a fast-growing tree. The box is placed in the sun for a year, and the tree grows inside of the box. Did the total weight of the box and its contents increase, decrease, or remain unchanged. Explain your hypothesis.

stratosphere: as the altitude increases, the air temperature increases. the stratosphere has a layer of ozone, called the ozone layer. this layer absorbs most of the ultraviolet radiation from sunlight. this results in the stratosphere being warmer.

the correct answer is:

a population changes in response to a change in the environment.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.