Answer:
The second option.
Explanation:
We're trying to test the amount of bleach that has an effect on the stain so that is the altered variable.
The 2nd option uses different amounts of bleach to clean the same amount of stain.
If you choose the other options, people can argue that the bigger stain would be harder to clean with one cup of bleach, whereas the small stain gets two cups or the other way around.
It's not an effective way to see if the amount of bleach has an effect on stain removal.
I think that it is A. it forms new mountains under the water
Yes it does. Are you trying to find out the name of the Membrane? if So, it's called: Semipermeable
<span>Direct consequences of cumulative post-industrial emissions of carbon dioxide include increasing global temperature. </span>The oceans absorb 22 million tons of carbon dioxide every day. <span>When the oceans absorb </span>CO2, the chemical reaction that takes place produces carbonic acid (H2CO3<span>), which increases the acidity (lowers the pH) of seawater. So, the balance is ruined. </span>
