Answer: The use of water is increasing day by day and the amount of freshwater available for the daily use is less than 1%. There are thousands of activities going on in this 1 % of water only. There is a huge of amount of water present on earth but that cannot be used because of being salty. The use of water is a concern because most of the water is wasted that water is freshwater only. The water used for brushing, bathing, agriculture, etc is freshwater only. Water should be used in a sustainable manner to fulfill the demand of present generation and save for future generation because life is impossible without water.
Answer:
The answer is: B) Twice the true concentration
Explanation:
According to what was expressed in the problem, the experiment has to be done with 200 ul of solution, with 200 ul of DNS and finally with 400 ul of H2O. The expression in the problem says that 100 ul of solution is recovered and 100 ul of DNS are added, and 200 ul of H2O are added, but it is said that only half of the solution was added (100 ul of H2O), leading to a increase in glucose concentration.
both immigration and births add individuals to a population.
