Answer:
can develop even if a behavior is only intermittently reinforced
Explanation:
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."
To know more about porous:
#SPJ6
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
low unemployment
foreign subsidies
prosperity
Answer:
Low unemployment and prosperity
Explanation:
The correct answer for above statement is:
higher standard of living
increased agricultural focus
more access to health care
more access to transportation and communication
more industry
reduced educational opportunities
shorter life expectancy
Explanation:
MDCs stand for More Developed Country.
An advanced country, industrialized country, more advanced country, or "more economically advanced country" (MEDC), is a sovereign state that has a highly advanced economy and advanced technological support relative to other less industrialized countries.
higher standard of living increased agricultural focus more access to health care