Answer:
A quarter of the sample.
Explanation:
Let the quantity at the beginning be T. If the element has a half-life of 1,000 years, it means that after 1000 years, T/2 (which represents half the initial quantity available) would have decayed, remaining T/2.
After another 1000 years (making 2000 years), T/4 (which represents have of the quantity left after the first 1000 years) would have decayed, remaining T/4.
This means that only a quarter of T would be left after 2000 years.
A comparative behaviorist
The median for group 2 is almost double the median for group 1. Group 2's median would be 80, and 1's would be a little over 40, which is about half. The median is the middle line of the box on the graph.
An active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. The substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme
H2O(l)-> H2(l)+O(g)
as the trees transpire releasing gaseous water. Water would decomposed to release O.
