5 years
But it differs by size
If i was in the age where electricity was not a thing and where there was no electricity, yes because coal helps you keep warm by the fire or fireplace and it probably would help you make and cook stews and other dishes.Without coal, all our food would be raw.
Drying Deserts with Air. Deserts cover around 20% of the Earth and are on every continent. They are mainly found around 30 to 50 degrees latitude, called the midlatitudes. ... Because the cooling air is above the equator, the moisture rains back down on the tropics.
Spindle fibers form a protein structure that divides the genetic material in a cell. [...] At the beginning of nuclear division, two wheel-shaped protein structures called centrioles position themselves at opposite ends of the cell forming cell poles. Long protein fibers called microtubules extend from the centrioles in all possible directions, forming what is called a spindle. Some of the microtubules attach the poles to the chromosomes by connecting to protein complexes called kinetochores. Kinetochores are protein formations that develop on each chromosome around the centromere, which is a region located near the middle of a chromosome. Other microtubules bind to the chromosome arms or extend to the opposite end of the cell. During the cell division phase called metaphase, the microtubules pull the chromosomes back and forth until they align in a plane along the equator of the cell, which is called the equatorial plane.
I am in AP Bio Soo xD