Topic Details (Notes format)

Which giant kelp forest ecosystem is located off the coast of California?

Which isotopes are commonly used to date organic remains in archaeology, with a half-life of ~5,730 years?

Who discovered the ancient Etruscan civilization?

Who discovered promethium?

Which scientist discovered radioactivity along with her husband and won Nobel Prizes in Physics and Chemistry?

Who discovered Cepheid variable stars?

Which organ pumps blood throughout the human body?

Which country was formerly called Ceylon until 1972?

Which element has the chemical symbol "Ac"?

Which country is known as the ‘Gift of the Nile’?