1) The word "cheese" contains three vowels: E, E, and E.

2) Male seahorses are the ones who give birth to their offspring.

3) In response to the global push for sustainability, many countries have set ambitious goals for transitioning to renewable energy sources, such as the aim to achieve carbon neutrality or significant reductions in greenhouse gas emissions by specific target years.

4) The world's first car radio was invented in 1929.