Question

column a
1 ____

1. ____

3 ____

1. ____

column b
a. hadean earth: 4.6 to 4 billion years ago
b. rodinia: ~900 million years ago
c. pleistocene ice ages: ~18,000 years ago
d. late archean to early proterozoic: 2.8 to 2.2 billion years ago
e. cambrian: ~500 million years ago
f. snowball earth: ~650 million years ago
g. middle jurassic: ~170 million years ago

Explanation:

1. Image 1 shows a molten, hellish Earth, matching the Hadean Epoch description of a young, hot, volcanic world.
2. Image 2 has large continental landmasses assembled into a supercontinent, which matches Rodinia, a major Precambrian supercontinent.
3. Image 3 shows an Earth almost entirely covered in ice and snow, the defining feature of Snowball Earth.
4. Image 4 shows extensive ice sheets covering polar and northern regions, consistent with the Pleistocene Ice Ages.

Answer:

1. a. Hadean Earth:4.6 to 4 Billion Years Ago
2. b. Rodinia: ~900 Million Years Ago
3. f. Snowball Earth:~650 Million Years Ago
4. c. Pleistocene Ice Ages: ~18,000 Years Ago