Electromagntic wave, such as an X-ray.
Explanation:
- Electromagnetic wave does not require any medium to travel. These waves propagate outwards from the source.
- They can travel even through the vacuum of outer space.
- The major source is the sun which emits radiation in the form of the Electromagnetic spectrum.
- These waves travel through oscillating electrical and magnetic fields generated by the oscillating charged particles.
- These waves oscillate in the perpendicular direction of planes concerning each other and are in form.
- Electromagnetic waves travel at speed of light.
Answer:
Dentistry of gases and mass and distance from sun.
Explanation:
- Out of the 8 planets the earth is an only habitable planet in the solar system till date and thus is called as the blue planet as it has water as the source of life form.
- Other planets like the mars and Venus are likely that of the earth but have a certain amount of variation in their atmospheric composition and characteristics and thus they have different cycles.
- Thus like the variation of the sunlight in the earth equator and the poles, due to the more bulges to the equator areas and less of above.
- Similar is the variation in the gases and the density of the mass of the planets and other four-planet are gas giants and have there own atmosphere surrounded in thick layers.
The main mechanism through which the layering happened is gravity: it pulled the heavier, denser material to the center, leaving the less dense material on the surface.
The material that was on the outside cooled quicker, but this was the result, not the cause.
The answer is
<span>2) Gravity caused more-dense material to move toward the center of each planet.</span>
The answers are Gross domestic product
Quality of life
And literature
The correct answer is letter A. Biosphere is not directly studied in one of the main branches of Earth/Space science. This is a branch of science that focuses on living organisms that are living in different populations or communities all over Earth. The other three choices directly study these branches of Sciences.
