1) The legislative branch in many democracies is responsible for making laws, representing the interests of the people, and providing checks and balances on the executive branch.

2) The Cannes Film Festival, held annually in France, is one of the most prestigious film festivals in the world.

3) The first computer mouse was invented by Douglas Engelbart in 1964 and consisted of a wooden shell and two metal wheels.

4) The study of fossils is called paleontology, and it helps us understand the history of life on Earth and the process of evolution.