Answer:
Regular polygons have all their angle the same. 90 degree angles can only make a square.
Explanation:
To be regular, all angles have to be congruent. That would be 7 right angles The sum of the angles for an n-sided polygon is (n-2)180 or when n=7 that is 5(180) which is 10(90). and you have only 7 times 90 if they were all 90.
Answer:
Oil and coal are two of the most used fossil fuels by modern societies for the creation of goods and services, as well as for the mobilization of people through vehicles. Therefore, they constitute the most important raw materials for human subsistence, along with water and food.
For this reason, social awareness and the culture of caring for the environment directly affects the use of these goods, since an overexploitation and eventual extinction of these natural products would imply a series of extremely negative consequences for the human species in general. In addition, the necessary care in its use must be strictly contemplated, in order to avoid contamination situations that affect the quality of life in general.
I think the answer is B: sediments melt deep beneath the Earth's surface.