If Polaris were to go supernova today, no one currently on Earth ever know it happened because it would take 434 light years to reach the Earth
Explanation:
The Polaris or the North Star that we can see at the North Pole of the Earth in the night historically dates back to 434 years in the past. If the Polaris becomes a supernova or if it dies now, it will take 434 years in the future from now to know about it.
This is simply because ‘one light year is the distance traveled by light in one year’. Hence currently, one cannot know about what happened to the Polaris supernova even if it happens now.
A cell is the building block of an organism, or the smallest unit of life. The creatures inside provide food and energy to us, because we can't make our own energy.
Evaporation, condensation, precipitation, runoff
Runoff, ocean storage, evaporation and the answer is right
Answer: 36 chromosomes
Explanation: Mitosis is a type of cell division that occurs in somatic or body cells. In mitosis, and a cell undergoes division to produce two daughter cells each with the same number of chromosome as the parent cells. Mitosis produces diploid cells and diploid cells are cells that have the same number of chromosomes as the parent cell. Diploid cells have two complete sets of chromosomes. For example in humans, somatic cells with 46 chromosomes undergo mitosis to produce two daughter cells each with 46 chromosomes.