Question

a bolide is an unusually bright shooting star that can be seen from a large portion of earth. the probability of a bolide event in a region depends mainly on the blank. of the places listed, blank is the least likely to host a bolide event. canada 9,984,670 sq. km, china 9,572,900 sq. km, greenland 2,166,086 sq. km, australia 7,682,300 sq. km

Explanation:

Step1: Understand the problem

We need to determine which region has the highest and lowest probability of hosting a bolide event. The probability depends on the area (since a larger area means a higher chance of being hit). So we compare the areas of the given regions: Canada (9,984,670 sq. km), China (9,572,900 sq. km), Australia (7,682,300 sq. km), Greenland (2,166,086 sq. km).

Step2: Compare the areas

• Largest area: Canada (9,984,670 sq. km)
• Smallest area: Greenland (2,166,086 sq. km)

So the probability of a bolide event is mainly on the region with the largest area (Canada) and the least likely is the region with the smallest area (Greenland).

Answer:

The probability of a bolide event is mainly on the $\boldsymbol{\text{Canada}}$. Of the places listed, $\boldsymbol{\text{Greenland}}$ is the least likely to host a bolide event.