B. the rules must be met in any area and you can not reward what is not done well
"If they are used ocassionally, antiacids don't produce any risk. But used daily, they can cause a "rebound" reaction: heartburn pain can actually worsen and some people experience diarrhea or constipation from certain antiacids."
Answer:
Natural resources are things that exist without any actions from human-kind. This is something like wood or stone.
However artificial resources are things that are man-made. These are things such as paper.
True ,Early humans were able to move out Asia into North America during an Ice Age because of a land bridge.
Answer:
Water is returned to atmosphere by
- Evaporation
- Transpiration
- Humidity
It gets back to ocean by evaporation then precipitation
71% or same amount