BMST - Basic Math and Science Earth's Geological Cycles Questions and Answers 3

Question 1

Which process converts solid rock into sediment through physical and chemical breakdown?

Accepted Answer

Weathering

Answer

Weathering breaks down rock into smaller particles through physical forces (like frost) and chemical reactions (like oxidation).

Question 2

At which type of plate boundary does seafloor spreading occur?

Accepted Answer

Divergent boundary

Answer

Seafloor spreading occurs at divergent boundaries where tectonic plates move apart and magma fills the gap to form new oceanic crust.

Question 3

What is the name of the supercontinent that existed approximately 335 million years ago before breaking apart?

Accepted Answer

Pangaea

Answer

Pangaea was a single landmass that included all of Earth's continents before it began breaking apart about 175 million years ago.

Question 4

Which layer of Earth's interior is responsible for generating Earth's magnetic field?

Accepted Answer

Outer core

Answer

The liquid outer core, composed mainly of iron and nickel, generates Earth's magnetic field through convective motion.

Question 5

During the carbon cycle, what process do plants use to remove carbon dioxide from the atmosphere?

Accepted Answer

Photosynthesis

Answer

Plants use photosynthesis to convert atmospheric CO₂ and water into glucose and oxygen using sunlight as energy.

BMST - Basic Math and Science Test Practice Test