Answer:
1. <u>Were allowed</u> to protest outside the factory.
2. My grandparents didn't get <u>used to </u>recycling anything at all.
3. Climate change is by far the<u> worst</u> problem the Earth faces.
4. Ricky <u>said</u> that he only uses rechargeable batteries these days.
5. It was the first time Tom had <u>ever</u> seen a panda.
5. They're tired because they <u>have been</u> planting trees all day.
Answer: See explanation
Explanation:
Series of items: When there are a series of items, the comma can be used to separate them e.g. I went to the market and bought rice, yam, beans and egg.
Introductory word or phrases: The comma can be out after an introductory word or phrase e.g. However, the dog bit the boy.
Interrupting phrases: The comma can be used for an interrupting phrase to give more information.
Compound sentences: Comma can be placed between compound sentences even though each sentence can stand on its own e.g. Tom doesn't like mangoes, so he threw them away.
Ok. for question #1:A.
question#4 (i think, idk):C
question #6:A
question #7:A
question#14:B
question#15:D
question#18:D
question#19:A
(btw I barely understood any of that, so please next time, clarify your question to make it easier to comprehend)
A because it is not plural hope that helps you
Answer: Convection defines the heat transfer by air or water. It is the process by which heat is transferred from a hotter body to a colder body.
Explanation:
Examples of convection are: Steam rising from a coffee mug, smoke rising from campfire, heater blowing warm air.
The warmer air moves up and the colder air sinks in or down. This is how the convection works.
The heat from coffee moves through the steam particles into the air. Another example is heated air blows from the blower. The smoke rising from fire carries warm air to the upside and colder air to downside.