It is b. the PH level decreases causing the solution to become more acidic.
Astronomers use the Doppler effect<span> to measure the frequency of light waves as an object is moving with respect to the observer</span>
Observation, hypothesis, experiment is the correct answer
Answer
Used up faster than they are able to be replaced
Explanation:
The word renewable itself mean non-depletable or naturally replenish able. They cause little to no environmental impact that it can be used for long term. They are available in plenty and cannot be used up in quick time. Hence option a is correct. Rest all are correct about characteristic of a renewable resource
The nucleus is the center of the atom where the protons and neutrons can be found.
