Answer:
the solstice make day or night significance longer .The mast important thing that they do idps cause the seasons ,with the earth on its 23.5 degrees angle along with the sun and the rotation the earth this causes the seasons and the appropriate climate for human to live
<span>The epipelagic ocean zone is most habitable. taken from another sorce than my brain doe fam...</span>
The altitude and climate change
Answer:
b. flat rotation curves in spiral galaxies
Explanation:
Dark matter accounts for majority of the matter in the universe (about 85%). It is considered to be composed of subatomic particles which are yet to be discovered. Dark matter cannot be observed because it does not emit light that can be detected. Only its gravitational effect is visible.
Astronomers when calculated the mass of the visible matter and tried to account for the observed speed of stars in the galaxy, there was a mismatch. To understand what caused this mismatch, astronomers gave name to the invisible matter as the Dark Matter.
The expected velocity of stars should decrease away from the near the center of the galaxy but a constant velocity of stars was observed that is a relatively flat rotation curve was obtained.
Thus, flat rotation curves in spiral galaxies in an evidence of Dark Matter.
Answer:
The poor people
Explanation:
The poor people always the ones that suffer the most when there are negative changes. They are not financially capable to avoid the problems that come upon them, and plus they are overly dependent on the nature for their survival. These people can not afford or do not have healthcare that is eligible, so if there is a pandemic they will be the first ones affected, and by far the most affected. They depend mostly on agriculture for their survival, and it is agriculture in more primitive manner, which is the one that suffers the most from the climate changes and the natural disasters. If the crops fail dramatically only one year, it will have huge effects, if that happens several years in a row, it can be one of the biggest, if not the biggest humanitarian crises in the world.
