Most astronomers now believe the demise of the dinosaurs 65 million years ago was caused by a large asteroid impacting the Yucatan peninsula area.
Blog
Without the greenhouse effect operating in our atmosphere
Without the greenhouse effect operating in our atmosphere
The presence of a magnetic field is a good indication that:
The presence of a magnetic field is a good indication that:
A sol;id body from the outer solar system that arrives intac…
A sol;id body from the outer solar system that arrives intact on the earth’s surface is called a ______________ .
A body in orbit about a planet is a(n)
A body in orbit about a planet is a(n)
Which of these age ranges best decribes the lunar maria?
Which of these age ranges best decribes the lunar maria?
The most abundant gas in the Earth’s atmosphere is _________…
The most abundant gas in the Earth’s atmosphere is __________ .
Venus’ rotation period is longer than its period of revoluti…
Venus’ rotation period is longer than its period of revolution around the Sun.
Compared to the Earth, the Moon lacks a hydrosphere, atmosph…
Compared to the Earth, the Moon lacks a hydrosphere, atmosphere, and a magnetosphere.
The clouds of Venus are made primarily of __________ .
The clouds of Venus are made primarily of __________ .