Topic Details (Notes format)

Which layer of Earth’s atmosphere absorbs most of the ultraviolet radiation from the Sun?

Which region in northern Chile and southern Peru is famed for dryness and astronomical observatories?

What is the chemical symbol for tungsten?

In Greek mythology, which Titan was forced to hold the sky on his shoulders?

Which element has the chemical symbol "Cr"?

Who discovered the first Homo sapiens fossils in Africa?

Who discovered hassium?

Who discovered dwarf planet Makemake?

What do bees collect and use to make honey?

What is the main gas found in the Sun?