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.
Possible Earth 5 billion years from now
Comparative sizes of the Earth and the Moon
The monthly changes of angle between the direction of illumination by the Sun and viewing from Earth
Scaling the Earth down to the size of a basketball, the Moon is roughly the size of a tennis ball. T
False-color imagery of the Sun, a G-type main-sequence star, the closest to Earth.
El Anatsui, Between Earth and Heaven.