Answer:
First Lady Michelle LaVaughn Robinson Obama is a lawyer, writer, and the wife of the 44th and current President, Barack Obama. She is the first African-American First Lady of the United States. Through her four main initiatives, she has become a role model for women and an advocate for healthy families, service members and their families, higher education, and international adolescent girls education.
Explanation:First Lady Michelle LaVaughn Robinson Obama is a lawyer, writer, and the wife of the 44th and current President, Barack Obama. She is the first African-American First Lady of the United States. Through her four main initiatives, she has become a role model for women and an advocate for healthy families, service members and their families, higher education, and international adolescent girls education.
Answer:
1.c 2. Dangerous :yes. Polluted yes .Pleasant No 3.C
Answer:
The air in the atmosphere consists of nitrogen, oxygen, which is the life-sustaining substance for animals and humans, carbon dioxide, water vapor, and small amounts of other elements (argon, neon, etc.). Higher in the atmosphere air also contains ozone, helium, and hydrogen.
Explanation:
Oxygen- is an important gas, both for humans as well as the atmosphere. It supports breathing for living beings, but at the same time, oxygen is a combustible gas, which means, it can catch fire quickly.
Carbon dioxide- is infused into the air due to respiration. Living beings inhale oxygen and exhale carbon dioxide.
Water Vapor- When the water present in the water bodies evaporates due to heat, it rises and mixes into the atmosphere.
"<span>How many times greater is the acidity of hydrochloric acid than vinegar?" is the best option from the list, since this is what the chapter is primarily dealing with. </span>