When magma<span> cools, </span>crystals<span> form because the solution is super-saturated with respect to some </span>minerals<span>. If the </span>magma<span> cools quickly, the </span>crystals<span> do not have much time to form, so they are very small. If the </span>magma<span> cools slowly, then the </span>crystals<span> have enough time to grow and become large.</span>
Answer:
Hi
This disease constitutes a health problem of great importance in much of the tropical and subtropical countries. The Centers for Disease Control and Prevention in the United States estimates that 300 to 500 million cases of malaria occur each year. More than 1 million people die from this disease. Malaria is a much higher disease risk for travelers in hot climates, for example, in the United States, about 1500 cases of malaria are diagnosed each year. The vast majority of cases correspond to travelers and immigrants returning from places in the world where there is malaria transmission, such as Africa and South Asia. Because this disease causes so many cases of illness and death, malaria causes great losses to the difficulties of many countries. Because many countries with malaria are among the poorest nations, the disease maintains a vicious cycle of poverty and disease.
Explanation:
The answer is A agriculture
Answer: As altitude increases, atmospheric pressure decreases
Explanation:
Atmospheric pressure 
is defined as the force 
per unit area 
the air that forms the atmosphere exerts on the Earth's surface:
It should be noted that as the altitude increases less air is above and, therefore the air weights less. This is because the atmosphere losses density as we ascend, causing less air.
However, it is important to point out this decrease in pressure is not linear, since at the beginning (in the first kilometers above sea level) it reduces more rapidly than in the next kilometers above. That is why this relationship between atmospheric pressure and altitude is exponential.
Answer:
it is hydroelectric energy :)
