<em>A megaphone used by a cheerleader can allow people on the opposite side of a field to hear her better because;</em>
D. Solid objects can change the direction of sound waves; megaphones allow users to determine the general direction of the sound.
<u>Determination of the general direction of the sound lessens its dispersion and thus, it reaches the observers at a higher intensity, hence it being louder.</u>
Answer:
C.
Explanation:
C. Warm and shallow, even though they can be found in deeper water they do better the more shallow the water is. They also live in tropical places and in salt water. They can not survive in fresh water or cold water for very long.
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I think the answer is A im sorry if its not right
Answer:
A. It has lost one electron
Explanation:
Since the H has been replaced by a +, this means that the Hydrogen is now a positive ion. For this to happen, it would have to lose an electron.
Gaining one would make it <em>negative</em>, and protons cannot be gained or lost under normal circumstances.
Answer:
A lot
Explanation:
am playing there around 195 counties and 7 continets my bad
