I think the answer would be B. Genealogy.
It's an sight observation you're using your eyes to see it it's one of your 5th sences
Answer:
A
Explanation:
insecticides are safe to use
Alright, so the highest temperature at which water is most dense id 4 degrees Celcius, if it gets lower than that, water would start to expand. So at 5 degrees, it would just be rain.