1) The world's tallest waterfall is Angel Falls in Venezuela, with a height of about 3,212 feet (979 meters).

2) The role of lobbyists in politics involves representing the interests of specific groups or industries and advocating for favorable policies or influencing decision-making processes within government institutions.

3) A single bolt of lightning can heat the surrounding air to temperatures five times hotter than the surface of the sun.

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