Which compound was abundant in Precambrian Earth’s oceans, before complex life evolved on Earth? A. dissolved oxygen
B. dissolved carbon dioxide
C. dissolved methane
D. dissolved ammonia

If you are going to enter a wrestling competition and need to make a certain weight, which method would best utilize? a: pinch an inch b: circumference measurements c: bathroom scale d: body-fat scale

Which action encourages homophobia? tolerating others' opinions welcoming someone into a group respecting others' differences accepting inappropriate terminology

Effective community programs the individual, the community, organizations, and the government. select the sentence that shows a benefit to organizations. ryan and farah were discussing voluntary work. ryan was very keen to work on health-related issues. he knew that many districts had effective community programs. farah recently read a report about a local community program that reduce the rate of heart diseases by 30 percent. this reduced healthcare costs. local companies also saw productivity increases.