Respuesta :

The superficial change in a system which itself stays invariant is termed First-order while the basic change in the structure of a system is called a second-order.

What is a change?

This refers to any consistent trend in the environment that affects a substantial part of the globe.

However, the First-order is used when for the superficial change in a system and the Second-order is used for the basic change in the structure of a system.

Therefore, the "First-order" and "Second-order" are the respective answers.

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