The Earth is closer to the Sun in January than in July, which accounts for the fact that the highest high tides in the Northern Hemisphere occur in
A) winter.
B) spring.
C) summer.
D) none of the above
Question 2
We do not observe tides in a community swimming pool because
A) gravitation on the small mass of water is negligibly small.
B) it is shallow compared to the ocean.
C) all parts of it are practically the same distance from the Moon.
D) they are masked by the much stronger pull of Earth gravity.
E) the tides are only observed at night.
Uranus revolves around the Sun once every 84 Earth years. Its average distance from the Sun is rough
The Interiors of Earth and Mercury
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
Earth’s orientation
Distribution of Earth's Water
Earth’s Layered Structure