The answer is A because all the other answers are unreasonable
Answer: Here you go
Explanation:
Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. Blood leaves the heart through the aortic valve, into the aorta and to the body. This pattern is repeated, causing blood to flow continuously to the heart, lungs and body.
Improperly managed agricultural<span> activities contribute to environmental degradation. Two ways are:
1. </span><span>nutrients, pesticides, sediment, and bacteria, or by altering stream flow may impact surface water
2. Deforestation (the removal of forests on the Earth) - causes increase of carbon dioxide and climate change </span>
