Choose all the answers that apply. Check the statements that are true. A hypothesis must be proven true in order for an experiment to be valid, electrons and protons are examples of cycles, a valid experiment must have results that can be repeated, observations are the final stage of an experiment, science is based on fact

In what ways did president richard nixon send mixed messages regarding civil rights? a. he placed southerners on federal courts and increased busing. b. he supported segregation as well as affirmative action. c. he criticized school busing but initiated affirmative action. d. he increased school busing but vetoed affirmative action.

Why are slanted roofs found on many buildings within russia and finland? a. to prevent ice slides. b. to prevent the build-up of water during heavy rains. c. to prevent heat from escaping during the clod winter months. d. to prevent snow build-up.

The british commonwealth is: a. the national treasury. b. the british social services system. c. an alliance of former british colonies. d. a shared land for grazing sheep in britain.