Answer:
Part of this border follows a natural boundary.
Explanation: 
The answer is this one because Its a natural line between texas and Mexico and there are no mountains
 
        
             
        
        
        
It created jobs for the US and increased employment and incomes as well and also lowered prices
        
                    
             
        
        
        
The ocean, atmosphere, cryosphere, and biosphere interact with the geosphere via the earth's crust.
 
Atmospheres are layers of gas that surround planets and other celestial bodies. Earth's atmosphere is composed of approximately 78% nitrogen, 21% oxygen, and 1% other gases. 1: the total mass of air surrounding the earth. 2: Gas surrounding celestial bodies (planets, etc.) The atmosphere of Mars is mainly composed of carbon dioxide. 3: air of a place. 4: Ambient influence or set of conditions An atmosphere of excitement.
The atmosphere is defined as the region of air and gas surrounding an object in space, such as a star or planet, or the air around any location. An example of the atmosphere is the ozone and other layers that make up the Earth's sky as we see it. An example of an atmosphere is the air and gases contained in a greenhouse. 
Learn more about the atmosphere here 
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Solution. Models are being used as a simplified representation of an object, idea, or an event that is too complex, too small, or too big to study. Scientists use models in order to show how a certain phenomenon occurs and to answer the questions regarding it.
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Answer:
It is the set of research technology transfer initiatives occurring between 1950 and the late 1960s, that increased agricultural production worldwide