Earth Science Review

Which of the following conditions promotes slow chemical weathering?

• fracturing

• thick soil

• high rainfall

• cold temperature

How does gravity contribute to weathering?

• by expansion of rocks

• by abrasion of the rocks

• by creating holes in rocks

• by splitting rocks particles

Which of the following is an example of biological weathering?

• Freeze-thaw

• Wind blowing sand onto a rock

• Abrasion due to the movement of glaciers

• Plant that grows on the cracks of the rocks

Weak organic acids are produced by the action of the growing root of lichens. These acids react with some minerals in rocks resulting in the decomposition of rocks. How will you classify this processes?

• Physical weathering

• Chemical weathering

• Biological weathering through physical means

• Biological weathering through chemical means

Which of the following DO NOT describe weathering?

• The process by which rocks are broken during severe weather

• The process by which rocks are formed by heat and pressure

• The mechanical or chemical process by which rocks are broken down

• The process by which rocks are chemically strengthened due to exposure to heat and pressure

Heat flows from the different layers to the earth. What type of heat transport occurs between the mantle and the core?

• conduction

• convection

• radiation

• thermal transfer

Which of the following pertains to the process by which gasses and dust of cloud were attracted by gravitational energy 4.6 billion years ago?

• Accretion

• Gravitational pull

• Solidification

• Planetesimal

What happens to the amount of pressure as you move from the outermost layer of Earth to its inner most layer?

• The amount of pressure remains the same.

• The pressure will increase then decrease from each layer.

• The amount of pressure increases from the crust down to the core.

• The amount of pressure decreases from the outermost layer to the innermost Layer.

Direct observation is not possible to know all the details about the interior of the earth due to its changing nature of internal composition and tremendous heat that come from its inner most layer. Which of the following will best describe the given sentence?

• The statement conveys correct information.

• The statement conveys incorrect information.

• The statement is dependent on the inner or outer core.

• The thought of the statement cannot be determined due to the nature of Earth

How is magma formed?

• Magma is formed through movement of rocks and minerals.

• Magma is formed under the earth's mantle through solar radiation.

• Magma is formed through heating and cooling of materials on the earth's surface.

• Magma is formed under certain circumstances in special location deep in the crust or in the upper mantle of the Earth.