Answer:
The study of ancient humans had changed over time as humans develop higher technology and more knowledge over time.
Explanation:
For example, Anthropogeny was discovered in the 1800s, and then people started learning new things and technology developed more.
Hopefully, this helps! :D
At one point, the value of the United States dollar was set according to the gold standard. One of these examples is the fixed exchange rate. The gold exchange standard guarantees the fixed exchange rate to the currency of another country that uses the gold standard.
The answer would be letter A.
Plants are living beings and need food to grow in a healthy way. Plant food is supplied by the soil, which, in addition to sustaining it, is the deposit of substances from which vegetables feed.
These food substances are called nutrients, and they are all the elements, or chemical compounds, that beings ingest to guarantee the functioning of their body's metabolism and cellular actions. In short: nutrients are the fuel and raw material for life.
