Answer:
Available freshwater allowed people to grow food.
Explanation:
Water is super important for a lot of different reasons. The more water that people had, the more crops that they can grow.
The main purpose of the introduction in an essay is
C. to grab the attention of the reader
B.
Is completely reflected by the atmosphere
Explanation:Intense heat and pressure in the Sun's core cause protons to fuse together to form helium atoms, a process that releases large amounts of energy. This nuclear reaction—the same process that takes place in a hydrogen bomb—has powered the Sun for more than 4 billion years.
Answer:
Since 1787, changes have been made to the United States Constitution 27 times by amendments (changes). The first ten of these amendments are together called the Bill of Rights.
Explanation:
In order to decrease bias and magnify validity, researchers need to employ systematic sampling techniques when making observations. A technique that observers can use to systematically they record all of the given options.
<h3>What is Event Sampling ? </h3>
Event sampling is defined as this is the method used to collect all the data by observing participants for a definitive length of time.
<h3>What is Time Sampling? </h3>
Time sampling is defined as this is the process used to accumulate information by observing participants at a certain time interval to record if the behaviour or activity has occurred.
<h3>What is Situation Sampling? </h3>
Situation sampling is defined as this is the method of collecting the information by looking participants at many locations under different circumstances.
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NOTE: The given question is incomplete on the portal. Here is the complete question.
QUESTIONS: In order to reduce bias and enhance validity, researchers need to employ systematic sampling techniques when making observations. A technique that observers can use to systematically select what they record is:
A) All of these options
B) event sampling
C) time sampling
D) situation sampling
