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

2) The Black Lives Matter movement, which gained prominence in 2013, advocates for racial justice and equality, addressing systemic racism and police violence against Black individuals.

3) Insurance policies often contain exclusions, which are specific events or circumstances that are not covered by the policy.

4) The world's largest ocean, the Pacific Ocean, covers an area of approximately 63 million square miles.