Requirements for an ice age on Earth include:
A) a weaker Sun.
B) continents located at low latitudes.
C) larger obliquity angle.
D) smaller obliquity angle.
E) continents located at high latitudes.
Question 2
Which is NOT true about Celtic languages?
A) They were threatened by extinction in England.
B) They are still spoken by people in France.
C) They have been revived in some parts of the British Isles.
D) They have an extensive body of literature.
E) They share common language structure with Finnish and Hungarian.
The geological timescale and an overview of the history of life on Earth
Possible Earth 5 billion years from now
Solar particles interact with Earth's magnetosphere. Sizes not to scale.
Hints of Earth’s Early Appearance
The Arctic is warming faster than any other region on Earth
A spaceship leaves Earth at a steady forward speed of 70% the speed of light. How fast relative ...