Tiny organisms known as cyanobacteria, or blue-green algae.
The correct answer is letter D: Quartz.
Event 1 is an example of a chemical reaction.
<u>Explanation:</u>
Whenever if two solutions are mixed, then if there is any color change, or evolution of any vapors, bubbles or gas formation or if there is any formation of a color or white precipitate confirms that the occurrence of a chemical reaction.
If nothing happens said above then it is said that there is no chemical reaction occurs.
Here in the event 1 a clear liquid in one beaker poured into clear liquid in beaker 2 then there is a formation of orange liquid, which means there is a formation of a new colored liquid confirms that the chemical reaction occurred.
B. It is not accelerating since equal and opposite forces cancel each other. Hope it helps
You could test how high the soda shoots up when you drop mentos in different types of soda. i did it when i was in 6th grade