<span>A drop in pitch as a vehicle passes is known as the Doppler effect.
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It describes an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other.
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Answer:
the given statement is an example of hypothesis.
Explanation
the given statement is an example of hypothesis.
A hypothesis is a prediction, an idea suggested in the sake of statement so that it can be examined to see if it could be true.
In scientific field, the hypothesis is drawn prior to any research, part from fundamental background analysis,
Usually a hypothesis is temporary ; it is an assumption or proposal created purely for the purpose of being tested
Answer:
cork cambium
Explanation:
The cork cambium is tissue which are found in a lot of vascular plants. They are a part of the epidermis. It is located in between the primary phloem and cork as layer of the bark. This tissue replaces the epidermis which are in the roots and stems. The takes the form of a hard material known as cork.
Cork is used to enclose wine bottles, bulletin boards etc. Most commercially used cork comes from the cork oak tree.
Answer:
The correct answer is : 4 to 8 weeks
Explanation:
When it is about competing in athletic events, what is recommendable for athletes is to spend many hours practicing and perfecting their skills. these sessions to perform drills and improve the athlete's skills and conditions have to take at least 8 weeks to be fully trained for the contest.
