The correct definition of biodiversity is the following: Biodiversity is the variance of plant and animal species within an environment. Correct answer: C
The term biodiversity denotes the variety of life on Earth: variety of flora and fauna. It includes species, genetic, and ecological diversity. Without biodiversity the life on earth would be impossible.
Answer: 
Explanation:
We have a right triangle with sides AB, BC=5cm and AC=13cm (the hypotenuse). Let's apply the Pithagorean Theorem to find AB:
(1)
(2)
(3)
(4)
Now that we know the value of each side of the triangle, we will use the trigonometric function sine to find the angles C and A (angle B is 
remembering we are talking about a right triangle):
For angle C:
(5)
(6)
(7)
For angle A:
(8)
(9)
(10)
Calculating the difference between both angles:
Answer:
following statements correctly describe the structure of a developing mid-latitude cyclone and anticyclone
Explanation:
A upward air motion above the surface high.
C system is vertically stacked (upper lows/troughs directly above surface low).
D divergence aloft above the surface high.
F upward air motion above the surface low.
Answer:
There isn´t other planet on which we could survive unprotected
Explanation:
Still no other planet has been found that has an atmosphere capable of retaining oxygen and decreasing solar radiation so that the person does not need as much oxygen equipment as a special suit to avoid the different types of raciations that can reach the planet .
It is also believed that it is possible to find on a future planet similar to Earth in which you can live without protection.
Answer: Geothermal energy consists of energy stored in soil, underground rocks, and fluids in the earth's mantle.
Explanation:
Geothermal energy refers to the heat that comes from deep inside the earth. It is a renewable energy source as a result of the heat that is continuously produced inside the earth. It is clean and sustainable and its resources vary from shallow ground to hot water and hot rock that can be found a few miles beneath the Earth's surface. Geothermal heat can be used for bathing, for heating buildings and also to generate electricity.
