A tornado, or twister.
Hope this helps ya :P
The purpose of the Open Door Policy was to collaborate with other nations to maintain a common price level for free trade in China. The Open Door policy started in 1899. The correct answer is B.
The process is called ovulation
<h2>Answer:</h2>
Option C is correct.
C. lower the activation energy so the reaction rate will increase
<h2>Explanation:</h2>
Enzymes are protein molecules in cells which work as catalysts. Enzymes speed up chemical reactions in the body, but do not get used up in the process. Almost all biochemical reactions in living things need enzymes. With an enzyme, chemical reactions go much faster than they would without the enzyme.
An eon is 1.05 billion years and an era is 350 million years