Because to demolish you need less labor, just a simple machine meanwhile to build something you need to take time to plan it out, design, etc.
The answer is lower because having to return to a pre disturbance size will likely affect its genetic variation to be lower compared to the original population where in its genetic variation will be greater compared to those in pre disturbance size.
D- weight is a measure of the force of gravity on objects
While living organisms contain a number of different elements, some elements are found in greater abundance in living organisms. These elements are oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus.
1. Phosphate
2. Pentose sugar
3. Nitrogenous Base