I believe its methane and carbon dioxide.... hopefully this works:)
Well all organisms do this! We are left with plant and Fungi.
Sunlight is working with your skin to make Vitamin D. Most of the times the sun sun is harmful to your skin also by leaving sunburns.
During the second trimester, energy needs of pregnant women are 340 more kcalories per day than those of nonpregnant women.
An abstract is a summary of the most important points in a scientific paper so scientists can keep up to date and know what the scientefic work says with out spending lots of time reading it.
Check out the article below for more information.
Ebert, James R. "WHAT IS AN ABSTRACT." WHAT IS AN ABSTRACT<span>. N.p., n.d. Web. 06 Mar. 2016.</span>