What is the name of the phenomenon where a small fraction of sunlight is redirected by Earth's atmosphere, causing the sky to appear blue?

In optics, what is the term for the point at which parallel light rays either converge or appear to diverge after passing through a lens?

In the context of electricity, what does DC stand for?

What law of motion states that an object will remain at rest or in uniform motion unless acted upon by a net external force?

What is the name for the process by which water from the surface of the Earth enters the atmosphere as water vapor?

Which blood type is considered the universal donor?

Which law of thermodynamics states that energy cannot be created or destroyed, only converted from one form to another?

What is the term for a sudden and violent shaking of the ground caused by the movement of tectonic plates?

Which structure connects the two halves of a neuron, allowing communication between them?

According to the law of conservation of energy, what happens to the total energy in a closed system?