Which of the following occurred first? a) the Milky Way b) the big Bang c) Earth

Question

Which of the following occurred first?

a) the Milky Way

b) the big Bang

c) Earth

d) The Sun

e) A nebula

2. Which of the following is essential in order for GPS to function?

a) A GIS unit in a receiver

b) Locations on land instead of the ocean

c) a small, radar unit

d) A nearby base station on Earth's surface

e) Highly accurate clock

3. The is another name for the latitude and longitude coordinate system

a) plane coordinate system

b) great circle system

c) graticule

d) gnomon

e) meridian

4. this figure shows that the most fundamental cause of the annual march of seasons is that

a) the northern end of Earth's axis is oriented towards the sun all year

b) December has the shortest day lengths in the Southern Hemisphere

c) March has the longest day lengths in the Northern Hemisphere

d) the orientation of the North Pole changes with respect to the Sun

e) the yearly solar energy totals vary by hemisphere

Explanation / Answer

ANSWER:

1) a) the Milky Way

Astronomers think the Milky Way, is about 13.2 billion years old; almost as old as the Universe itself.

2) e) Highly accurate clock is essential in order for GPS to function

3) e) meridian

The equator is where we measure north and south. Whereas, the GreenwichMeridian (or prime meridian) is a zero line of longitude from which we measure east and west.

4) d) the orientation of the North Pole changes with respect to the Sun

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