Every 5 years it will be half. So
After 5 years = 10/2 = 5 grams
After 10 years = 5/2 = 2.5 grams
After 15 years = 2.5/2 = 1.25 grams
The correct answer is probably A: The needs of society help determine the types of research conducted. For example, people are more likely to research ebola when there is an outbreak, right? B isn't true: for example, society doesn't let scientists experiment on unwilling humans! C is probably true, but it is more specific than A--that is, C only applies in certain cases. Society ALWAYS applies to science. D isn't correct either: society encourages research for the greater good, that will help EVERYONE.
Answer: A
True is the right answer. Have a good day
Was there supposed to be an image?