Hey there!
Let's start with the first blank. The ozone layer starts in the stratosphere and is made of ozone gases made to protect the Earth from the Sun's harmful UV rays. If the ozone layer wasn't there (not to mention the rest of the atmosphere), we would be exposed to that kind of radiation. Thereofe, "Ultra violet rys would not be <u>blocked</u> by the ozone layer."
For the next one, a lot of levels of substances in the air would change, like UV and oxygen- as there would be more radiation from the lack of protection and all the oxygen would escape.
Hopefully this helps!
During an avalanche the potential energy of the snow on the mountain is converted into kinetic as the snow rushes downward.
Answer:
long ago, when Earth was young, it is thought that something big hit Earth and knocked it off-kilter. So instead of rotating with its axis straight up and down, it leans over a bit. By the way, that big thing that hit Earth is called Theia.
Explanation:
A
Explanation:
After mitosis, two identical cells are produced with the same original number of chromosomes of the parent's cell. In this case, if a cell has 24 chromosomes, each daughter cell will have 24 chromosomes after mitosis