What is the correct term for changes in the elliptical shape of earth’s orbit every 100,000 years?

The correct term for changes in the elliptical shape of Earth’s orbit every 100,000 years can be described by - Milankovitch cycles

These cycle describe the effects of changes in the Earth's movements on its climate over thousands of years. There are three main factors of them: eccentricity, axial tilt, and precession.

integrated circuit (ic) is defined as a set of electronic circuits on one small flat piece of semiconductor material, normally silicon. a functional electronic circuit requires transistors, resistors, capacitors, inductors, etc., and the connections between them.

the answer is a) a shiprock was formed by igneous process