Which chamber of the heart pumps oxygenated blood out to the rest of the body?

Which colorless and odorless gas is particularly dangerous because it can cause poisoning without detection unless monitored?

Which macronutrient is the body's primary and most efficient source of quick energy?

Which household appliance operates on the principle of electromagnetic induction to heat food?

Which atmospheric phenomenon causes the sky to appear blue during the day?

Which B vitamin deficiency commonly causes the disease beriberi affecting the nervous and cardiovascular systems?