Question

which of the following sentences is the best example of a hypothesis?
a. how many types of organisms are there?
b. uv radiation does not cause skin cancer.
c. why does the earth orbit around the sun?
d. chickens lay more eggs when they are happy.

Explanation:

A hypothesis is a testable statement. Option A and C are questions, not statements. Option D's term "happy" is subjective and hard - to - define scientifically. Option B is a clear, testable statement about the relationship between UV radiation and skin cancer.

Answer:

B. UV radiation does not cause skin cancer.