Advertisements
Advertisements
Question
Name any three elements of the earth’s crust.
Solution
These are silicon, aluminium, iron, magnesium, calcium, potassium, sodium and nickel.
APPEARS IN
RELATED QUESTIONS
Rocks and minerals play a very important role in our lives.
Can you imagine modern life without minerals?
Write True or False. Rewrite the false statement correctly :
Basalt is an example of an intrusive igneous rock.
What is the difference between the inner and the outer core?
Give one difference between Extrusive igneous and Intrusive igneous rocks.
State the types of rocks for the formation of which the following process is involved.
Accumulation takes place over long periods of time in seas, lakes and streams.
Give a detailed account of lithiflcation of sedimentary rocks.
How are sedimentary and igneous rocks formed?
In what type of rocks do you find fossils and why?
Sedimentary rocks are also called stratified rocks. Why?
Classify the following rock: Slate
Fill in the blanks
______ is the best example of the wind deposited stratified rock.
How are sedimentary rocks classified?
Fill in the blank below:
______are intrusions of igneous rock that are vertical in shape
______ is the kind of metamorphic rock using which Taj Mahal was built.
______ is known as the primary rocks.
Igneous rocks are called primary rocks.
How are igneous rocks formed?
Match the following:
| (a) | Igneous | (i) | Magma |
| (b) | Sedimentary | (ii) | Transformation |
| (c) | Metamorphic | (iii) | Gypsum |
| (d) | Molten material | (iv) | Basalt |
| (e) | Rock Cycle | (v) | Marble |
Mention the types of rocks based on formation?
The types of rocks based on formation are
Statement (1): Sedimentary rocks consist of many layers.
Statement (2): Sedimentary rocks are formed by the sediments deposited at different points of time.
