Answer:
The investigation of past atmospheric compositions and past climate will help us understand the extent to which the use of fossil fuel has, and is still altering the atmosphere. These investigations will shed light on how much damage or good (if any) these fossil fuel usage is doing to the atmosphere and then we may from these investigations, put regulations, or total ban on some of these fossil fuels (if not ban their usage completely) in an effort to return the atmosphere back to its healthy composition, and proportion of useful elements.
Answer:
Option (4)
Explanation:
The radiation are defined as the energy that is liberated from atoms in the form of electromagnetic waves or minute particles of matter. For example, the radiations that are emitted from the sun in the form of light.
This radiations are mainly of 3 types. This includes-
(a) Alpha Radiation- These are the short ranged particles and are very heavy. This radiations cannot penetrate the human skins but they can cause harmful diseases.
(b) Beta Radiation- These are also the short-ranged particles but they lighter. This radiations can penetrate the human skin upto the depth where the new skins are created.
(c) Gamma Radiation- These are highly dangerous and are penetrable to the human skin. This type of radiations are often used for the medical purposes.
Thus, the correct answer is option (4).
Star dunes are mountains that can form in areas with relatively sparse sand and ever-changing winds.
<h3 /><h3>Where is the star dune easiest to find?</h3>
They are easily found in deserts, and will be formed with the transport of sediment by changing the direction of strong winds.
Therefore, the dunes are ecosystems formed by fine grains of sand from the action of the winds, forming mountains and hills of different shapes.
Find out more about dunes here:
brainly.com/question/14025864
#SPJ1
Explanation:
Forest fires make it harder for plants and animals in an ecosystem to grow, this causes a variety of plants in an ecosystem to become extinct in that area, animals have a hard time living in an ecosystem like this and that is why it is harder for biodiversity in an ecosystem happens.
-Hope my answer is helpful!
The right answer is CFA francs
