Which gas can be classified as a greenhouse gas?

a. argon

b. oxygen

c. nitrogen

d. carbon dioxide

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16