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Rom4ik [11]
3 years ago
7

Which of the following is true about radiation?

Geography
1 answer:
mars1129 [50]3 years ago
4 0

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).

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What is the main type of tectonic plate boundary that exists along the edge of the north american plate near the coast of northe
Kitty [74]

Answer:

To the east, the North American plate shares the Mid-Atlantic Ridge with the Eurasian plate. This divergent margin, offset throughout by transform faults, began spreading approximately 180 Ma ago, opening the North Atlantic Ocean. Evidence of Mesozoic juvenile crust formation in New England can be correlated with the event.

Explanation:

The San Andreas transform boundary between the Pacific and North American plate originates from the shallow, oblique subduction by the North American plate of the Monterey microplate

The Monterey-Pacific ridge stopped spreading and Monterey accreted to the Pacific plate. As a result, the Pacific plate’s motion with respect to the North American rotated, transforming a network of shallow faults into dextral transform faults

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4 0
2 years ago
Macon, Augusta, and Columbus are located in which region of Georgia?
Nutka1998 [239]
<span>Macon, Augusta, and Columbus are located in the (C) Coastal Plain Region in Georgia, which includes the lower half of the state.

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Would you expect to find dinosaur fossils in undisturbed rocks that are above the iridium
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Answer:

All dinosaur fossils found by archeologists have been found a few centimeters below the iridium layer. So, the possibility of finding dinosaur fossils above the iridium layer is very slim.

Explanation:

Over 65 million years ago, dinosaurs roamed the earth but were canceled out as a result of an extraterrestrial impact on the earth's crust. Research proved that an asteroid brought the end of dinosaurs as the element iridium was found in the earth (since iridium is abundant in asteroids and not the earth's crust).

Records of fossils found have been between 13 to 60 centimeters below the iridium or the K-T boundary as it is called.

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