B. 3
Each lever containing load, fulcrum, and effort
Answer:
The long-held view that Charles Darwin avoided publishing his theory of evolution for 20 years because he was afraid of the reaction it would provoke is being rebutted as a myth by a Cambridge University academic.
Explanation:
The reason to maybe explain why crops in the Arctic grow larger than normal during the summer months is because of warmth. The sun may be making it warmer down <span>there at that time.</span>
The answer is B. respiration
Answer:
Calcium can build up in your pool water when the pH levels are off and leave deposits on your pool tiles. It's similar to what happens in your bathroom sink, toilet or bathtub.
More details:
There are two types of calcium compoundsthat form in pool water and create scaling--calcium carbonate and calcium silicate. Both are caused by a pH imbalance. Your pool should be at a pH between 7.4 and 7.6.
<em><u>I hope this helps. </u></em>