13.99 kilometers is the diameter.
Divide the circumference (43.96) by 2(pi), which should give you a radius of 6.99. You should then proceed to multiplying that by 2, since radius is half of the diameter, giving you 13.99.
Answer:
Starting in the 1900s, technologies and industrial developments advanced enormously, modifying the living conditions of human beings in general, throughout the entire width and length of the earth's surface.
Thus, starting with the Industrial Revolution of the mid-1800s, technologies such as the steam engine and the development of automated means of production generated a series of technological advances that allowed a greater modification of the environmental environment of human beings, in in order to guarantee better living conditions.
Now, these modifications, which at first were not harmful or at least not to a great extent, over the years and the development of technological advances began to impact the environment: the extraction of raw materials began To generate scarcity of them, the emission of gases into the atmosphere began to generate the phenomenon of global warming, and even indiscriminate hunting led to the extinction of hundreds of thousands of animal species.
As an object in motion speeds up or "becomes heavier", its kinetic energy increases proportionally: double the velocity and you quadruple the kinetic energy. This is why a tiny bullet traveling at high speed does so much more damage than a huge truck bumping into something at 1 mph.
Answer: Choice C
Number 5 is A and Number 6 is i think is D
