Answer: Hydrogen
Explanation:
Because it is the element that everything is created with it is everywhere. All life has hydrogen in it, our air, SPACE, everything.
The development that belongs at the end of Cherie's timeline is <span> genetic engineering. This is because all the topics in her timeline involve the study, discovery, and development of the human DNA. The last part should include the scientific breakthrough called genetic engineering which allows us today to modify the genetic makeup of organisms to produce desired results.</span>
<span>Formed alcohol, ethanol has a
structural formula <span>CH3</span><span>−<span>CH2</span></span><span>−<span>OH or it can also be written with chemical formula </span></span>C2H5<span>OH.</span></span>
<span>Ethanol is a simple alcohol produced via the fermentation of
sugars (such as glucose, fructose, and sucrose) by yeasts. Because yeasts do
this conversion in the absence of oxygen, fermentation is an anaerobic process.</span>
Enzymes are a type of protein, which speed up the rate of a reaction but are not used up or changed during the reaction. The enzyme lactase will speed up the <span> reaction of breaking down lactose. </span>
