English, 07.03.2021 20:00 crystalclear99
Did you ever think about what sound is made of? Did you know that sounds move at a certain speed? Learning about sonic booms can help you appreciate just how rapidly sound can travel. To understand the term sonic boom, you must first examine some scientific notions. You should realize that everything is composed of molecules. Even air—which may seem like nothing—is made up of molecules. Sound acts like a wave that shoves these molecules around. Some air molecules compress, or move close together, while others spread apart. As molecules move, they force other molecules to relocate. This movement allows sound to travel through the resulting empty space. The speed of sound is the rate at which sound travels through this space.
Which best describes the purpose of the first two sentences of this paragraph?
A) to engage the reader's attention
B) to conclude the paragraph's information
C) to summarize the paragraph's information
D) to provide supporting details for the main idea
Answers: 1
English, 20.06.2019 18:04
How can my teacher me to achieve success with juggling through these actions / supports i need three
Answers: 1
English, 21.06.2019 23:20
Bicycle riding should be encouraged, and adding bicycle lanes will increase the number of riders. it is healthier for people to ride than to sit angrily in traffic. it is healthier for everyone to breathe cleaner air. sharing the road can be tricky, but there are things that can be done. so, add the bike lanes and get rolling! which sentence would improve this conclusion? every town should consider adding bicycle lanes, because it is a great idea. organizing safety classes for drivers and cyclists will ensure that everyone knows the rules. do not listen to negative people who complain about anything new. it is true that some people might get injured, but even walking can be dangerous.
Answers: 1
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