Answer:
2n
Explanation:
All the phases double the cells
Answer:
Renewable energy sources lead to sustainable energy production whereas non-renewable energy does not. • The extraction and production of energy from renewable energy sources are expensive and difficult when compared to fossil fuel extraction.
Explanation:
Answer:
A number of human activities can impact on the water cycle: damming rivers for hydroelectricity, using water for farming, deforestation and the burning of fossil fuels. We are cheating the water cycle system everyday.
Explanation:
It pumps blood all over our bodies