Question

question 1 (1 point)
which concept describes the movement of large sections of earth’s lithosphere and is evidence that the planet’s surface has undergone significant changes over geologic time?

a superposition
b thermal equilibrium
c convection
d plate tectonics

question 2 (1 point)
what is the name of the geologic principle that states, in an undisturbed sequence of sedimentary rock layers, each layer is older than the one above it and younger than the one below it?

a principle of chemical change
b newton’s first law of motion
c law of conservation of energy
d principle of superposition

Explanation:

Question 1

To solve this, we analyze each option:

• Option a (Superposition) deals with rock layer dating, not lithosphere movement.
• Option b (Thermal equilibrium) is about heat balance, not geology movement.
• Option c (Convection) is heat transfer, not lithosphere motion.
• Option d (Plate tectonics) describes the movement of Earth’s lithospheric plates, showing surface changes over time.

We analyze each option:

• Option a (Principle of Chemical Change) is about chemical reactions, not rock layers.
• Option b (Newton’s First Law of Motion) is about motion, not geology.
• Option c (Law of Conservation of Energy) is about energy, not rock layers.
• Option d (Principle of Superposition) states that in undisturbed sedimentary layers, each layer is older than the one above and younger than the one below.

Answer:

d. Plate tectonics

Question 2