There is really nothing to know. All you have to use is context clues and common sense. We know some synonyms for direct are manage and handle. Indirect means not direct, right? And we can't handle or manage earth's interior (core), right? Therefore, the study of earth's interior is an example of indirect observation because we cannot directly manage it.
Electromagnetic radiationEarth's surface and atmosphere emit primarily infrared radiation.
The Earth emits infrared radiation or longwave radiation. This follows at once from the electromagnetic energy spectrum and the respective temperatures of the sun and Earth.
The Earth emits in the main longer wavelength infrared radiation that we can't see. daylight made up of seen light passes thru the atmosphere on the way into Earth, but the greenhouse gases inside the Earth's ecosystem soak up infrared radiation going out to the area.
Atmospheric radiation is the float of electromagnetic strength among the solar and the Earth's floor as its miles are motivated via clouds, aerosols, and gases within the Earth's environment. It consists of each sun radiation (sunlight) and long-wave (thermal) radiation.
Learn more about electromagnetic radiation here:brainly.com/question/1408043
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It can be one of two things.
First, it can be due to global warming.
Second, it can be due to the rotation of the sun. When the sun rotates, it can change it latitude causing it to hit at different points onto different areas of the world.
Rift Valley
A rift valley is a lowland region that forms where Earth's tectonic plates move apart, or rift. ...
Tectonic plates are huge, rocky slabs of Earth's lithosphere—its crust and upper mantle. ...
Many rift valleys are part of “triple junctions,” a type of divergent boundary where three tectonic plates meet at about 120° angles.
