A null hypothesis is a hypothesis that shows that there is nothing related between two or more things.
So the null hypothesis might be:
It doesn't take the average student at least 25 minutes to reach college.
How are concepts and categories similar?
The answer would be:
<span>Categories and concepts both control how your brain thinks.
Hope this helps.
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Answer:
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to the processes of denudation. About one-third of the land surface of the world is arid or semi-arid. This includes much of the polar regions, where little precipitation occurs, and which are sometimes called polar deserts or "cold deserts". Deserts can be classified by the amount of precipitation that falls, by the temperature that prevails, by the causes of desertification or by their geographical location
