Sedimentary rocks are important because __:
1. They keep a record of early thermal history of earth
2. They keep a record of history of the erosion of Earth
3. They provide us information about paleoclimate
4. They provide us information about evolution
Choose the correct options from the codes given below:

Answer: [B] Only 2, 3 & 4

Thermal history is something which is more commonly related to Igneous rocks. Sedimentary rocks are important because they preserve a record of ancient landscapes, climates, and mountain ranges, as well as the history of the erosion of Earth. In addition, fossils are found in abundance in sedimentary rocks younger than 600 million years and provide evidence of the evolution of life through time. Earth’s geologic time scale was worked out using this record of sedimentary rocks and fossils.

This question is a part of GKToday's Integrated IAS General Studies Module