Please help me understand this...I'm so confused with this question.

An effective thesis statement will reflect . . 1) possible weaknesses in your own argument. 2) possible weaknesses in your opponent's argument. 3) the type of document--or genre--you plan to write. 4) your attitudes about aquatic mammals

The voussoirs rest on the centering until the keystone is wedged into place. at that point, the centering can be dismantled. what does the word dismantled mean? a. to take apart b. to put together c. to cover d. to lift up

Question 15 of 25 2 points read the following excerpt from a speech: it has been suggested that all automobiles be converted to electric power by the year 2020. _ there simply isn't the infrastructure in place to accommodate such a change. which word or phrase best connects the ideas in these sentences? o a. nowadays o b. therefore o c. in contrast o d. unfortunately