Answer And Explanation:
Option C is correct.
Lend and borrow money, taxation, law enforcement, charter banks and transportation.
Some of the powers that were mentioned in the other options that weren't concurrent powers (that is, they belong to either the state government alone or the federal government alone) & disqualified them from being the answer include:
National defence (federal), Currency (federal), foreign affairs (federal), intrastate commerce (state) etc.
It introduces a diverse array of bacteria, algae, and invertebrates to the closed marine environment and functions as a superior biological filter
Answer:
Option B. is the right answer.
Explanation:
Before developing a new technology, an engineer has to evaluate the advantages and disadvantages of the chemical used in order to clean water bodies. If the chemical has more disadvantages as compared to advantages, so its usage will be avoided while if the chemical does not harm the marine organisms of the ocean so it can be used for the purpose of cleaning. So we can say that first the engineer has to study the chemicals.
