SSLC (English Medium) Class 9 - Tamil Nadu Board of Secondary Education Question Bank Solutions for Social Science

What is SIMA?

What is NIFE?

Give reason for the following:

The Earth’s gravitational force

Give reason for the following:

Generation of the Earth’s Magnetic field.

Give reason for the following:

The cause of the functioning of the magnetic compass

______ is a vent (or) and opening on the surface of the Earth crust.

Seismology deals with ______.

Composite volcanoes are commonly found in the ______ocean.

Consider the given statement

1. When magnia reaches this Earth’s surface, it is referred to as ‘Lava’. 
2. The interior of the earth contains very hot molten material called ‘Magma’. 
3. Sedimentary are also called Primary (or) Mother rocks. 

The breakdown of rocks without changing their chemical composition is called ______.

What is Exfoliation?

Define soil.

Give reason:

Physical weathering causes cracks on the surface of the earth.

Define Granular Disintegration.

The upper limit of the troposphere is called as ______.

Large jet planes normally fly here ______.

The atmospheric layer, which lies beyond the exosphere is ______.

The Limit of Clouds is upto ______.

There is cut-off signal when NASA rocket reaches in the region of ______.

A layer of Ions inside the Mesosphere is called ______.