In 25 words or fewer, describe one primary source and one secondary source you think would be useful when studying government and politics

Primary Source can be talking to a particpated person in government inform you and secondary source can be studying how history can change, being passed down.

Explanation:

A primary source is first hand. Ex: I experienced the Vietnam War. I tell people about the Vietnam War. its a primary source because it was first hand.The information was given to me first.

A secondary source is second hand. information passed down ,usually the second time. Ex: My friend who had experienced the Vietnam War himself ,told me about the enemies troops.

Hope this helps!!

Not all of them

Explanation:

Aquatic animals, such as fishes, can release ammonia directly into the environment. ... Animals that secrete urea as the primary nitrogenous waste material are called ureotelic animals. Birds and reptiles excrete uric acid, a water-insoluble form of nitrogenous waste, thus reducing water loss.