Answer:
What type of soil filters water best?
Explanation:
dependent variable - the cleanliness of the water after it is filtered
independent variable - soil
control variable - water
(Asking with a <em>please </em>wouldn't hurt -_-)
Explanation:
I need a help of math.
please can someone help me ?
Answer:
it is called an ion
Explanation:
if it gains electrons then it is an anion
if it gains protons it is a cation
typically non metals are anions and metals are cations
Trilobites are more common than Sea urchins