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).
The mid-ocean ridges are elevated above the surrounding seafloor because Ridge rocks are hot and therefore of relatively less dense than adjacent cooler oceanic crust.
I hope this helps you! :)
The most active volcanoes are located in South America and the bottom of North America
The correct answers are:
- Traditional;
- Market;
- Traditional;
- Command;
- Market;
- Command;
- Market;
- Command;
The traditional type of economy is an economy that is not willing of change, it keeps the things safe and usually without any risks, in order to maintain what they already have, so the progress is pretty slow.
The market economy is the most dynamic one, and it is an economy with free markets, lots of risks, and lots of opportunities, thus it is the one that has the most rapid changes, be it upwards or downwards.
The command economy is typical for the socialist systems. It is an economy where pretty much everything is organized, planned, and enforced by the government, and it is an economy that is orientating towards self-sustaining.
