I would choose the windmills for production of electric power.
The modern day windmills are relatively good producers of electric energy. They are not very expensive, they use renewable energy (the wind), and are of great use for both the economy and the people themselves.
The economic benefit can be seen that they produce energy very cheaply, and they do not require and resources for their functioning. Also, they save a lot of money because they manage to produce electricity that otherwise would have been imported, thus hitting the economy badly.
The benefit for the people is that they provide more electricity, stable one, and prevent the lack of electricity when it is used more, especially in the winter months. Also, this electricity is cheaper.
Most of the coniferous trees are found in the Alpine Mountain regions in the part of Western Europe.
<h3>What are coniferous trees?</h3>
The trees, which grow tall and the tip of their leaves are in the shape of a needle are known as coniferous trees. The structure of coniferous trees is in the shape of a cone.
The growth of such trees is most suitable in the mountainous regions or hilly areas, as they also allow a favorable atmosphere for their growth.
Hence, option D holds true regarding coniferous trees. An image of coniferous trees is added for better reference.
Learn more about coniferous trees here:
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Answer:
Centroid = (5, 1)
Explanation:
Given:
S(5, 5), T(11,−3), U(−1, 1)
Required:
Coordinates of the centroid of the triangle
SOLUTION:
Formula for centroid for coordinates to find the centroid of a triangle = 
Where,
Plug in the values into the formula:
Centroid = (5, 1)
<h2>Right answer: It is used to measure long distances in space</h2>
A light year (
) is a distance unit that is approximately 
.
By definition it is <em>the distance that a photon would travel in vacuum during a Julian year (365.25 days) at the speed of light (299 792 458 m/s) at an infinite distance from any gravitational field or field magnetic.
</em>
<em>
</em>
In other words:
It is the distance that light can travel in a year.
This unit is used to measure large distances in space. Therefore the correct answer is D.
Answer:
If the duration of life on Earth was on a scale of 20,000 days, the human species would be present in the Earth for approximately 9 days.
Explanation:
We can't be sure about the exactly age of the Earth, but we can base our calculus in a number between 4400 and 4600 million years, because the most accepted researches shows numbers in this span of time. We can take the average of those limits: 4500 million years.
On another hand the presence in the Earth of human species has not a precise date because of the it does not have a precise date for two main reasons, the scientific evidence does not include all the human species that existed on Earth but it is a very incomplete evidence and besides being an evolutionary phenomenon it is not easy to determine from what moment We can consider that a species belongs to the human race or not. In any case, we take the approximate date of the scientific evidence of the existence of human species in an age of 2 million years.
With both numbers we can calculate the proportion in the scale of 20 thousand years throw the following formula:
PHS = 20000 years . 2 million years / 4500 million years = 8.9 years
PHS: Presence of Human Species
