Which among these is a biotic factor? a) weather b) water temperature c) interactions between organisms d) sunlight

Why were the farmers not satisfied with only establishing cooperatives ?

Which amusement park ride utilizes periodic motion a.slide b.bumper cars c.giant swing d.roller coaster

Alife insurance salesman sells on the average 3 life insurance policies per week. use poisson's law to calculate the probability that in a given week he will sell 2 or more policies but less than 5 policies? i just require an answer.