Answer:
The 1st one: Obama claims, “Looking at today’s youth, our future is bright.”
Explanation:
Use a comma after introducing who's speaking, then write the quote.
Well I think some people are successful because they try their best and they studied and set there goals high. I think others are unsuccessful because they don’t try to theirs full potential and they just give up Or they are less fortunate than others to have a good learning enviorment or learning in general a lot of places on the world still don’t have schools that are able to full heed their learning lifestyle.
<em>The type of heat transfer that causes the air to circulate and form such clouds is called (option D) </em><em>CONVECTION.</em>
Convection refers to the process by which the heat energy transfers by circulation of liquids or gases. In the atmosphere, when the air is heated, the air molecules expand becoming less dense; as a result the less dense molecules rise. When it is cool, the air becomes dense and sinks; so it pushes warm air up where it expands once more. The cool air sinks again as it becomes denser; then it is warmed by the Earth's surface and the process starts again. The convection current creates an ongoing cycle of warming, rising, cooling and sinking.