Answer:
Its A
Explanation:
It takes about 4 years for light from this star to reach earth. Depends on the the Distance of the star. As our sun is 149.6 million km away from the Earth it takes total 8 minutes 20 seconds.
It takes light 8 minute to reach from surface of sun to earth.
However, light produced in the core of the sun takes thousands to millions of years to get to the surface.
A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km).
Answer:
<em>The correct answer is the option on the upper right .</em>
Explanation:
Aquatic birds that require fresh water to thrive need to be around a source of fresh water. The wetter island has more fresh water than the drier island. This means that both island will be occupied from a population of zero, to an optimum stable population, which is indicated as the graph moves from zero to its maximum point, and then levels out. Th drier island will have the same pattern of curve, but will only be able to support a much smaller population, which is why the curve for the drier island is less than that of the wetter region.
Answer:
glycine and proline
Explanation:
First, a three-dimensional stranded structure is assembled, with the amino acids glycine and proline as its principal components. This is not yet collagen but its precursor, procollagen. Procollagen is then modified by the addition of hydroxyl groups to the amino acids proline and lysine.
boom.
Seasonal changes occur because of earth's tilt