The joints developed due to tensile forces are _______

Fractures along which there has been no relative displacement is called?

How many groups are classified based on the presence of regularities?

Joints in metamorphic rocks are due to _______

Joint is always accompanied by opening.

Joints do not have dip and strike.

The streaks or bands filling material in the rocks are called _______

How are the main joints aligned to the cooling surface?