A scientist usually runs a(n)__ to see the effect the independant varible has on

test or trial

Explanation:

When somone is doing an expirement they usually conduct tests to see if their hypothesis was valid. They could so small trials like this,

Example:

Problem: Can people taste the difference between Coca Cola and Pepsi?

Trials:

1. Yes

2. Yes

3. No

4. Yes

5. Yes

6. No

7. No

8. Yes

9. Yes

10. Yes

Based on the majority, the solution to our problem is yes, most people can taste the difference between Coca Cola and Pepsi.

air quality

poor drinking water

and heavy polution

can lead to poor health

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.