Explain why internet sites like wikipedia are controversial research sources

The main reason why sites like Wikipedia are considered controversial research sources is that everyone has access to them. Therefore, a person does not need to prove his knowledge or expertise before he writes something. This means that the information presented could potentially be wrong, biased or incomplete. When you are researching a topic, you need to make sure that all the statements you include are factually correct, and that if something is an opinion, you state so and reference it properly.

i took this test im trying to remember i think it is the first one im super sorry if i remembered wrong!

a low four-wheeled open carriage of a kind formerly used in russia.