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When an electron moves from a low to higher energy state, a photon is __________.

The age of the solar system is determined with ________ dating.

Spring tides occur at new and full moons, when the Moon and Sun are aligned with the Earth.

The most energetic photons are __________.

The tidal pull of the Moon is an example of a differential force, as the near and far sides of the earth do not experience the same gravitational pull of the Moon.

Meteor showers are the result of collisions between asteroids.

Streaks of light made when small debris hits our atmosphere are called

Meteorites are important because:

The two forms of electromagnetic (E-M) radiation that experience the least atmospheric opacity are:

The major presence of water detected on the Moon is in: