Many entomologists say that campaigns to eradicate the fire ant in the united states have failed because the chemicals that were used were effective only in wiping out the ant's natural enemies, which made it easier for them to spread.
(a) which made it easier for them
(b) which makes it easier for it
(c) thus making it easier for them
(d) thus making it easier for the ant
(e) thereby, it was made easier for the ant

It’s a gas and a nonmetal

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.