How dose the scientist know that the substance goes through a change of state during the time period labeled B on the graph. P. s this is actually science i cant find the subject for science so who ever answers this will resive a prize

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In her article "why should i vote? " stephanie goggin crafts a well-organized and coherent argument. she states that every person of voting age who is registered should vote. she also argues that if you are not registered to vote, you should be. in conclusion, goggin's argument is laid out in a thoughtful and thorough way that is convincing to readers. which element is missing from this evaluation?

Essay questions may also be referred to as a. talk questions c. hard questions b. explain questions d. think questions