Fossil Record and characteristics of today's chordates
They might have a common ancestor.
The gases present at the origin of the earth were believed to be nitrogen (N2), Carbon dioxide (CO2), water vapor (H20), and maybe some carbon monoxide (CO).
<h3>Origin of the earth</h3>
The earth is believed to have originated in what scientists have referred to as the big bang in which several gases were formed.
The gases present at the origin of the earth were believed to be nitrogen (N2), Carbon dioxide (CO2), water vapor (H20), and maybe some carbon monoxide (CO). The gases aggregated to form amino acids hence the origin of the initial life forms.
Learn more about gases: brainly.com/question/1369730
<span>Carbon dioxide is a colorless and odorless gas that is vital to life on Earth. This naturally occurring chemical compound is made up of a carbon atom covalently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent by volume. Natural sources include volcanoes, hot springs and geysers, and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers and also in seawater. It is present in deposits of petroleum and natural gas.</span>
Answer:
False
Explanation:
Xrays show images of metallic/bone or plastic objects. It shows if there are any breaks or objects not supposed to be there.
