Eastern Europe & the (former) Soviet Union transitioned to a:
Market-based economy.
The unsaturated zone is the area of the subsurface that is above the groundwater table. The pores of the soil and rock in this zone contain both air and water.
<h3>What is the water table?</h3>
The water table is the subsurface border between the unsaturated and saturated zones.
The water table is an underground border that separates the soil surface from the area where groundwater saturates crevices between sediments and rock fissures.
At this point, the pressures of water and air are equal.
The unsaturated zone is the soil surface above the water table, where both oxygen and water fill the crevices between particles.
Therefore Option C is correct as it is where a person will immediately reach after drilling a well through an unsaturated zone.
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Answer: environment and society
Explanation:
Since the engineer has been hired in order to get a newer form of electricity, this implies that the engineer will need to get a location that'll be suitable for the wind power system to be developed.
This, an environment hat has lots of breezes and winds will be required to generate the wind power. Also, the engineer will need to study the environment to use a d carry out necessary analysis and feasibility study to know whether the wind powered will be effective. Therefore, the correct option is environment and society.
Earth's air is made up of molecules of different gases that are not joined chemically, and a terminology which best describes air is mixture.
<h3>What is a mixture?</h3>
A mixture can be defined as a combination of two (2) or more substances which are present in varied proportion (unfixed ratios). Also, a mixture can be visibly seen with our na-ked eyes and separated by physical means.
<h3>The types of mixture.</h3>
In Chemistry, there are two (2) main types of mixture and these include the following;
From the above definition of a mixture, we can reasonably infer and logically deduce that the particles of a mixture do not have a set ratio on how to combine and they can be separated through the use of a physical separation technique.
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