<span>Most people's urine is darker in the morning as the kidneys work hard during the night to remove impurities and the urine is more concentrated.</span>
A dam is a structure built across a stream or river to hold water back. Dams can be used to store water, control flooding, and generate electricity.
If a person built a bridge that didn’t have water holes under it than the other side of the river would drought and kill all animals depending on that sorce of water
If you were studying climate change in general. The answer would be the last one which is ecosystem because it’s the study of the environment
