Answer:
A liter is just bigger than a quart
A gram is the the mass of a dollar bill.
A centimeter is the width of a your pinky.
A kilometer is 0.6 miles.
A meter is just bigger than a yard.
A kilogram is 2.2 pounds.
A millimeter is the width of your fingernail.
The three(3) potential challenges or important points to consider when conducting a data collection are described below.
Data collection is a detailed process that is used in gathering and measuring information from a selected source by a researcher.
To perform a data collection, the following important points are to be considered :
- Cost of data: before data collection, a researcher should check if the data that is being considered is affordable. this is done to avoid quitting.
- Accuracy: there are different types of data collection techniques these include: questionnaires, interviews, focus groups, observation and case studies. the data collection technique that should be chosen should provide the most accurate results.
- Validity of data: if your findings will truly represent the phenomenon you are claiming to measure, then the data collected is valid.
Therefore the above important points needs to be considered during data collection.
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"Gravitational attraction" is initially responsible for the formation of the clumps of matter within this interstellar cloud.
<u>Answer:</u> Option C
<u>Explanation:</u>
About 4.6 billion years ago, the solar systems were a bunch of gases and dusts, referred to solar nebula. Gravity squeezed the material as it started to rotate, creating the sun at the middle of the fog.
The rest of the material began to accumulate with the sunrise. The smaller particles moved together to form larger particles that were connected by gravity. As lumps develop, gravity increases and turns into kinetic energy of moving particles that collide and produce heat.
I think the best phrase to describe this would be Founder effects. Founder effects occurs when a new colony is started by a few members of the original population. This small population size means that the colony may have; a non-random sample of genes in the original population. Reduced variation from the original population.. According to Bottlenecks and founder effects, genetic drift can cause big losses of genetic variation for small populations.
