Advertisements
Advertisements
प्रश्न
Why are Sedimentary rocks called the Secondary rocks?
उत्तर
Sedimentary rocks are called Secondary rocks or derived – rocks because they are derived by the denudation of other rocks.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Sedimentary rocks are formed from _____________ accumulated over long periods.
Differentiate between SIAL and SIMA.
How are rocks different from minerals?
Describe the process that leads to exfoliation.
Why are the igneous rocks also called the primary rocks?
Name two important landforms made by Igneous Rocks.
Name the rocks which are most widespread on the earth.
Name the main types of rocks.
Name different types of sedimentary rocks.
Classify the following rock: Loess
Classify the following rock: Basalt
Give one word for the following.
The lower part of ocean floor, comprising mainly of silica.
Give one word for the following.
Igneous rocks, which contain a high percentage of silica.
Give one word for the following.
Igneous rocks, which contain a low percentage of silica.
What is the basis for the classification of rocks?
Chemical sedimentary rocks are found in the beds of reservoirs.
______ into slate caused by thermal metamorphism.
Minerals exist in nature ¡n the form of ______ or ______.
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
Match the following.
| A. | Granite | 1. | Bed rock |
| B. | Soil layer | 2. | Plutonic rock |
| C. |
Barren island |
3. | Strip farming |
| D. | Soil conservation | 4. | Active Volcano |
