Explanation:
The Earth is closest to the Sun every January, but it is the fact that the north pole of the Earth's axis is tilted away from the Sun at that time of year which causes it to be winter in the northern hemisphere. B. Given the effects of precession, will this still be the case in 13,000 years?
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This type of rock is called breccia. You may have seen it before. It looks like a ton of random rocks squished together. These types of rocks are sedimentary because they are made up of fragments of other rocks that were basically sealed together, so they are technically made of sediments. The word <u>clastic</u> means the rock is made up of pieces of preexisting rock.
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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).
