1. dust
2. Hubble's constant
3. Local Group
4. Dark matter is massive enough to produce a gravitational redshift and gravitational microlensing in light from nearby stars or galaxies. The mass of visible matter also can be compared to the total mass of a galaxy or cluster. This invisible portion of the total mass is called dark matter.
5. In an expanding universe, objects are moving away from Earth, so the light they emit would have a redshift as observed from Earth. In a decelerating universe, light would have no redshift. Light would have a blueshift in a collapsing universe because all objects in that type universe would be moving toward each other.
<span>Why do more hydrothermal resources exist in the western regions of the United States?<span>
</span>Answer: There are more hydrothermal resources in the Western regions of the United States because the there are temperatures hot enough to be useful as a geothermal resource located at depths too far below the surface. This is why this area became a prime target for the development of geothermal energy resources.
I hope it helps, Regards.</span>
The suggestion from the United Nations that the bugs can be a better choice for food source than the pigs and cattle is because of the sustainability of the bugs as a food source.
The bugs consume much less food, and their food choices have a very wide range, often being very opportunistic eaters. Also, they multiply extremely quick, grow very quickly, and are an excellent source of protein. All of that compared to the pigs and the cattle and their demands, time for growing, and space they occupy, gives the bugs a big advantage.
On the other hand, most of the nations are not willing to try such a move. The reasons for that is that most of the people, especially the ones in the developed and developing world find the bugs disgusting, so consuming them is something that they will never do.
Every 50,000 years or so, the magnetic poles of the Earth reverse. As basalt is erupted from sea floor spreading centers, the iron in the basalt aligns itself to the magnetic pole orientation. Paleomagnetism is simply studying the magnetic orientation of iron in old rocks. So, if you have a section of sea floor and you find three zones that record magnetic pole reversals, you know that by the rate of those reversals you are looking at roughly 150,000 years of time.
