It's called a competition. <span />
A is the answer
What causes Neptune to have an icy enviroment?
A random sample is a subset of individuals that are randomly selected from a population of interest. Because researchers usually cannot obtain data from every single person in a group due to time, costs and other constraints, a smaller portion is randomly chosen to represent the entire group as a whole. The goal is to get a sample that is representative of the larger population.
Answer:
baleful means threatening.
online definition: threatening harm; menacing.
It's like an intense version of threatening.
