Which profession is likely to use a radiation shield

Use examples from the article to explain one positive and one negative effect that chemistry has had on society

Which statement is a reason to support population regulation? a) it is unethical for us to control birth control rates b) humans have the freedom to produce as many children as desired c) the gap between the rich and poor has been narrowing since 1960 d) billions more people on the earth will intensify many environmental and social problems

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland