In the periodic table, which group do alkali metals belong to?

What is the SI unit of work and energy?

Which of the following is a greenhouse gas that is more potent than carbon dioxide but less abundant?

Which type of cloud is often associated with thunderstorms and severe weather?

What type of celestial object is a rapidly rotating neutron star that emits beams of radiation, observed as periodic pulses?

Which hormone is responsible for regulating metabolism in the human body?

What is the common name for sodium bicarbonate?

Which of the following is a diatomic molecule?

In the periodic table, which group do the noble gases belong to?

Which famous comet, with a period of about 76 years, was last seen in 1986 and won't return until 2061?