Which membrane surrounds the lungs and reduces friction during breathing movements?

Which gas do plants primarily absorb during photosynthesis?

Which element is the primary component of natural gas used for cooking and heating?

Which type of fat is generally considered healthier and is commonly found in foods like olive oil and nuts?

Which law explains the equal and opposite reaction observed when a rocket launches?

Which common kitchen tool functions based on the principle of a wedge to separate materials?