Water is the most scarce resource in the Middle East
There are only two countries that are self sufficient in the whole of middle east which are sufficient are Turkey and Iran. 70 percent of the Arab countries get water from non-Arab countries.
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The answer is : temperature estimated using any of several methods. The most important variable in reconstructing ancient climate is temperature estimated using any of several methods.
3.) People that share a common language, culture, or history are referred to as an ethnic group. The answer is B.
4.) There have been many issues in Canada where Quebec wants to become an independent country because of it being more French. The answer is C.
5.) The Canadian Sheild is not arable land. The land is very hard and has thin soil. The answer is A.
I am going to say d because the second one says it preserves size then i would think of the word conformal but if not that one i would say b
Answer:
The Bulk density = 1.3 g/cm³
the porosity of the sample is 132 cm³
Explanation:
Given:
Volume of cylinder = 260 cm³
Mass of container and the soil = 403 g
Mass of the empty container = 65 g
Thus,
The mass of the soil is = 403 - 65 = 338 g
Now,
The Bulk density = 
or
The Bulk density = 
or
The Bulk density = 1.3 g/cm³
also,
average particle density for mineral soil is usually given as 2.65 g/cm³
i.e the air present in the given soil sample has reduced its density from 2.65 g/cm³ to 1.3 g/cm³
The mass of the whole sample = Volume × Density
= 260 × 2.65
= 689 gm
but,
The actual mass of the dry sample = 338 g
thus,
Mass of air in the sample = 689 - 338 = 351 g
Therefore,
the volume of 351 g soil =
=
= 132.45 cm³
so the porosity of the sample is 132 cm³