Which of the following sedimentary rocks is mechanically formed?
chalk
coal
shale
limestone
Correct answer is C
No explanation has been provided for this answer.
When it is noon at the Greenwich Meridian, the time is 5:30p.m on longitude?
75° 3'W
82° 30É
82° 30'W
75° 30'E
Correct answer is D
No explanation has been provided for this answer.
The rotation of the earth on its axis?
causes the varying lengths of day and night
is responsible for the change of the seasons
causes day and night
delimits the tropics
Correct answer is C
No explanation has been provided for this answer.
At the summer solstice (June 21), which of the following latitudes will have the shortest night?
60°N
30°N
30°S
60°S
Correct answer is A
No explanation has been provided for this answer.
10
15
20
25
Correct answer is C
No explanation has been provided for this answer.