C. The size of the tumor before because it doesn't depend on Drug X's effects or the effects/changes from the scientist.
Answer: see explanation
Explanation:
(1). Substainibility actually means finite, renewable etc.
Sustainable resources are natural resources that are renewable and can be harnessed for important things for mankind without short of supply
(2). Water is too cheap, compared to its real value, and is rarely taken into consideration when decisions are made regarding resources. In general, decisions that determine how most of water is utilized are taken by a limited number of people.
(c). Reducing the development of thermal power stations: power station produces 80% of our electricity and consume a lot of water. We can do this by rewarding farmers that uses irrigation farming efficiently.
If there was a larger population of rabbits than dandelions, and the rabbits only ate the dandelions, they would eventually run out. then the rabbits would start to die too, since their main food source is gone.
Isotopes are elements with same atomic number Z= number of protons but different mass number A, where A= Z+N, N= number of neutrons which is variable. As for radioisotopes, I’ve never heard of them before !
What does BEST mean because I can’t answer that