Answer:
i think 1. true and 2.false
Explanation:
It depends on the composition of the chemical.
Most chem. burns are from home products. example; bleach, toilet cleaners,pest control such as ant spray, usually treated with clean water.
More serious chemical burns that need medical attention are from factories that produce such chemicals.., like proctor & gamble,..etc....
Answer: Ventricle I have also given the explaination.
Explanation: The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve. The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve. The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
Sickle red blood cells can block the blood vessels in the lungs. This reduces oxygen flow to the lungs and can make it hard to breathe. This condition is an emergency and may be life-threatening.
4.) The record keepers opinion of what the problem is.
