The answer is The unsorted sand and rock is the least porous. The porousness of a solid material is dependent on the size of holes within it. This can be tested by how quickly, the material can pass a liquid through it. The bigger the holes, the higher the porousness, In this case, the unsorted sand and rock have the smallest holes between its particles.
Large pebbles and boulders materials is the least porous. Correct option is D.
Large pebbles and boulders are the least porous among the given options. Porosity refers to the percentage of void space or openings (pores) within a material that can hold fluids like water, air, or other substances. It is a measure of how much empty space exists within the material.
In the given options:
a. loosely packed gravel: Gravel generally has larger particles and may have relatively higher porosity compared to other options.
b. sorted sand and rock: Sorted sand and rock may have some porosity depending on the grain size and how well-packed the particles are, but it is likely to be less porous than loosely packed gravel.
c. unsorted sand and rock: Unsorted sand and rock may have varying porosity depending on the mixture, but it is likely to be less porous than loosely packed gravel.
d. large pebbles and boulders: Large pebbles and boulders have minimal pore space compared to the other options. The particles are relatively large and leave less room for open space between them, resulting in lower porosity.
So, the material with the least porosity among the given options is "d. large pebbles and boulders."
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Complete question is:
Which of the following materials is the least porous?
a. loosely packed gravel
b. sorted sand and rock
c. unsorted sand and rock
d. large pebbles and boulders
Niger River
Congo River
Zambezi River
refrigerated correctly?
Answer:
pls give more clues so that i can be able to answer your question.
Explanation:
To determine which food has been refrigerated correctly, consider the recommended temperature, proper packaging, and expiration dates.
To determine which food has been refrigerated correctly, we need to look at the temperature at which food should be stored. The Food and Drug Administration (FDA) recommends keeping the refrigerator temperature at or below 40°F (4°C). Foods that have been refrigerated correctly will maintain their freshness and quality. For example, raw meat and poultry should be stored in the coldest part of the refrigerator to prevent the growth of bacteria, while perishable foods like dairy products and leftovers should be kept at a consistent temperature.
Additionally, proper packaging is also important. Foods should be stored in airtight containers or wrapped tightly to prevent air and moisture from entering and spoiling them. This helps to maintain their taste and texture. Lastly, it is important to monitor the expiration dates of food items and discard any that have passed their expiration date.
In conclusion, a food that has been refrigerated correctly is one that is stored at the appropriate temperature, packaged properly, and has not exceeded its expiration date.
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Until modern times, most countries were ruled by _____.
some form of authoritarian government
Answer:
hope this help
Explanation:
is called so because the northern part of the country is located above the artic circle, where the sun shines 24 hours a day from Mid-May to Mid-July.