Answer:
The answer is, cooler materials are highly dense, causing them to sink to the outer core or letter B
Explanation:
The matter that is closer to the surface of the Earth cools faster, causing it to sink back down into the core and the hotter, less dense material to take its place. The Earth’s rotation also influences convection. Cooler materials move from Earth’s mantle to the lithosphere. Cooler materials are highly dense, causing them to sink to the outer core. Warmer materials sink to the mantle because their density slowly decreases. Warmer materials have a high density, causing them to rise to Earth’s surface.
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There's multiple reasons for the changes of seasons on the Earth, the most important being the elliptical orbit of the Earth around the Sun, its inclination, and the angle by which the Sun's rays are falling on the Earth.
Because the Earth's orbit is elliptical, in certain parts of the year it is closer to the Sun, and in certain parts of the year it is further from the Sun. When the Earth is closer to the Sun, it speed increases slightly, and that makes the Earth cooler, and when it is further from Sun, its speed decreases by little, and the Earth is warmer.
The inclination of the year allows for one half of the planet to get more Sun light in one part of the year, and the other half to get less, while in the other part of the year, the half that was getting less Sun light gets more, while the one that was getting more is getting less.
The angle of the Sun's rays is directly connected to the inclination of the Earth and its shape. The parts that get the Sun's rays at an angle of 90 degrees or close to that are warmer, and as the angle is becoming smaller and smaller the parts of the Earth become colder and colder because the rays are dispersing over a much larger area.
Answer:
Energy absorbed at the Earth's surface is radiated back to space in the form of thermal infrared
Explanation:
From all the energy absorbed at the Earth's surface returns as evaporation, convection and thermal infrared radiation. Therefore,all the other answers: visible light, ultraviolet radiation and microwaves are not correct.
Answer:
''Few people work full time'' is not a correct statement.
Explanation:
Northern Europe is comprised of the Fenno-Scandinavian countries, including Finland, Sweden, Norway, Denmark, and Iceland. These countries are all highly developed and in pretty much each aspect are among the highest rated in the world, be it happiness, living standard, safety, education, healthcare, etc.
Something that is typical for all of these countries is that they all have very good and generous social welfare systems. The corruption is extremely low, the organization on top-level, fantastic education, very low unemployment, excellent healthcare system... The vast majority of the population in these countries is working full time and it is actually very rare for someone to work part-time, and this is due to the high expenses which go hand in hand with the high living standards. While people work full time, it has to be mentioned that some of these nations have fewer working hours than the rest of the developed countries, which seems to give them good results. This has led to nations that are often seen as the best or among the best for living in the world, and that is fully justified. It has to be noted though that Sweden went too far with its socialist politics and has created very big social, economic, and safety problems that can easily escalate.
