I would go with b-genetic engineering (:
If the following graph represents the decay of strontium-90 in an igneous rock, what event occurred at 0 years on the horizontal axis?
<span>I have a graph with the vertical axis showing the percentage of radioactive element remaining. </span>
USE SOCRACTIC IT WOULD DEFINITELY HELP
Concentration gradient differs whether the solution is greater or lesser anticipating if it's hypertonic, hypotonic, or isotonic.
The answer is a) a rubber band
