Exam 1: Introduction to Earth

Time zones are universally divided into zones of 24° longitude.

One can tell when it is solar noon by observing ________.

The best description of the actual shape of the Earth is as a(n) ________.

Which of the following is NOT contained within Earth's system of latitude and longitude?

Explain why the following lines are crucial to physical geography: North Pole, South Pole, Tropic of Capricorn, International Date Line.

The ________ equinox of the southern hemisphere takes place when the vertical rays of the sun cross the Equator on the journey southward.

The plane of the ecliptic is the same thing as the perihelion.

The vertical rays of the Sun are present at the Arctic Circle during the June solstice.

Earth's diameter is ________ kilometers.

Over how many degrees of latitude does the vertical sun migrate between the aphelion and the perihelion?

Of the following, which is a great circle?

The northern hemisphere's shortest day of the year is at the autumnal equinox.

At the Equator, one degree of latitude is approximately equal to ________.

After it was part of a nebula and before it was the Sun, our Sun was a ________.

The Earth's circumference is close to 40,000 kilometers.

Which of the following is out of order in the ideal application of the scientific method?

The United States spans ________ time zones.

Use the steps of the scientific method to devise an experiment to test the hypothesis that the Earth is round.

Almost all countries in the world base their time on UTC.

Global environmental change seems to be all natural.