Which of the following are factors in weathering and
erosion?
1. Precipitation
2. Temperature
3. Gravity
4. Wind
5. Deforestation
6. Acid

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?