Which statement best describes the nature of science? A. A hypothesis is a correct answer to a problem.

B. Science is a body of knowledge that is subject to change based on data.

C. The nature of science is for scientists to prove their point of view as correct.

D. A hypothesis becomes a law if there is data to support the hypothesis.

The answer is constant.

Carbon-14 has a half-life of 5,730 years and most igneous rock is older than that.

C) to ensure each new cell has an exact copy of the dna

In order to understand the problems of unwanted infertility in a country — the gambia — where the desire for children and the fertility is very high, a population-based survey was undertaken. all infertile women in 24 randomly selected enumeration areas were assessed. the study included a review of the problems faced and coping mechanisms employed by infertility clients and types of health care available for infertile couples in the different types and levels of the formal and traditional health system. half of the infertile couples failed to seek formal health care, and they have to reach a certain level of care in order to be properly managed. alternative care is often sought. child fostering is also a frequent solution to childlessness. in-depth interviews revealed that traditional care like healers and spiritual leaders are frequently consulted long before formal health care. this delay could be a problem in those cases where infertility is caused by infections.