PLEASE HURRY Each level of government has its own responsibilities, though some are shared. Which of the following actions is only for the national
government? (4 points)

Collecting taxes
Enforcing laws
Conducting elections
Establishing post offices

The civilian conservation corps (ccc), an agency established during the great depression as part of the new deal, created jobs for people who were unemployed. what kind of work did people do as part of the ccc? a. built libraries and hospitals b. maintained state and national forests c. photographed migrants and the homeless d. constructed roads and bridges

Often, a goby fish and a shrimp will live together in a burrow the shrimp has dug in the sand. the shrimp is almost blind and therefore is unable to see predators approaching when he is outside of the burrow. when the shrimp is in danger, the goby fish touches the shrimp with its tail to warn him. then, both go back into their burrow for safety. which type of relationship does this represent? a. mutualism b. parasitism c. commensalism d. predator/prey

99 points and brainliestdiscuss two of the major causes of the increasing pollution levels in the yangtze river. make sure to include how they contribute to the water pollution