Answer:
Convection current
Explanation:
Convection currents occur when a heated fluid expands, becoming less dense, and rises. The fluid then cools and contracts, becoming more dense, and sinks
Hot air rises because when you heat air (or any other gas for that matter), it expands. When the air expands, it becomes less dense than the air around it. The less dense hot air then floats in the more dense cold air, the cold air due to its greater density moves downward, and the cycle continues, this upward and downward movement is called convection current.
They are called compound sentences.When 2 sentences are connected.
B. Emit
The first thing to do for questions like these is determine the relationship the first two words have with each other. Because “exhibit” and “display” both mean “to show,” they are synonyms. As such, the word pairing with “send” should be its synonym. One possible meaning for “send” is “transmit.” As such, the word in the options that means “transmit” is “emit,” which is the correct response.
An address of your house
A date of when you wrote it
Dear Sir/Madam
From or Yours Sincerely
Paragraphs
First Person
It can be past, present or future tense
It can be formal or informal
