Gases in Earth's Atmosphere. Nitrogen and Oxygen are by far the most common. Dry air is composed of about 78% Nitrogen (N2) and about 21% Oxygen (O2). Argon, Carbon Dioxide (CO2), and many other gases are also present in much lower amounts; each makes up less than 1% of the atmosphere's mixture of gases.
So therefore Oxygen is the gas that makes up the largest portion of the Earths Atmosphere.
D. Certain genes are turned on and others are turned off; this action produces adult cells that are specialized
Hi
1. Lithosphere
2. Hydrosphere
3.atmosphere
4. Biosphere
The lithosphere/geosphere is made of the earth's core, the mantle, crust, ocean floor,mountains, sand, etc.The hydrosphere is made of everything water such as oceans, rivers, lakes, rain, and snow.The atmosphere is made of gasses such as oxygen, and hydrogen.Finally the biosphere is all that has life such as plants, animals, people, insects, etc.
Answer:
The correct answer is corpus callosum.
Explanation:
Corpus callosum is one of the compositions of the brain, which is situated within the cortex and above the thalamus. It is a thick tract of white matter, which associates the left and the right hemispheres of the brain. It is the component of the brain, which permits communication between the two cerebral hemispheres.
It performs an important role of conducting neural information between the two hemispheres of the brain.
