Which question can be directly answered through controlled experiments?
A) Are bees more attracted to red roses than to yellow roses?
B) Are red roses more beautiful than yellow roses?
C) Did an asteroid hitting Earth cause the mass extinction of dinosaurs?
D) When did the first life forms appear on Earth?
E) Is the increase in the severity of storms being caused by climate change?

Question

Quizplus · Accepted Answer

Controlled experiments can be set up to compare the behavior of bees when presented with red roses versus yellow roses. The other questions involve historical events or trends that cannot be directly studied using controlled experiments.

Which Question Can Be Directly Answered Through Controlled Experiments