it is built on years and years of scientists figuring things out, countless expirments, inventions. etc.
hope this helps.
The two structures that could be found only in plant cells are chloroplast and the cell wall. As these two structures are not present in the animal cells, therefore the chloroplast and cell wall are the two positive identifications of a plant cell under the microscope.
Free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone.
Answer is A Sunlight because the grass are staying in the shade which they’re not getting sun light
Answer: Meteorites spring from a variety of sources. ... More than 70 meteorites that have fallen to Earth have had their ages calculated by radiometric dating. The oldest of these are between 4.4 billion and 4.5 billion years old. Fifty thousand years ago, a rock hurled down from space to form Meteor Crater in Arizona
Explanation:
That is all I can think of