1) The human body contains enough carbon to make over 9,000 pencils.

2) The Bank of England, established in 1694, is the central bank of the United Kingdom and one of the oldest central banks in the world.

3) The development and adoption of renewable energy sources, such as solar and wind power, have contributed to the transition to cleaner and more sustainable energy systems, reducing reliance on fossil fuels and mitigating climate change impacts.

4) The word "flower" contains two vowels: O and E.