Any potentially harmful substance that humans add to an ecosystem a) is a pollutant. b) might cause acid rain. c) is always a carcinogen. d) is an inorganic substance h [e 20pts

Which of the following are true of the united states legislature? select all that apply. the house of representatives has two representatives from each state. senators are elected for a six-year term. the leader of the house of representatives is called the speaker of the house. once a bill passes the house, it goes directly to the president to sign into law or to veto. a person must be 30 years old in order to run for the house of representatives.

What happened in the tinker v des monies? and why is it important what happened in the hazlewood v. kuhlmeier? why is it important?

How is the man caricatured to show that he is a responsible citizen