Geologic Time Scale and Earth's History Assessment

What is an unconformity in rock strata?

• A gap in the rock record

• A type of fossil

• A volcanic deposit

• A mineral formation

What type of rock layers provide the best evidence for studying Earth's history?

• Metamorphic rocks only

• Igneous rocks only

• Sedimentary rock strata

• Volcanic rocks only

What does 'Organize' mean?

• To arrange or classify information in a systematic way, making it easier to understand or analyze.

• To disarrange information.

• To make information more complex.

• To ignore information.

How do index fossils help scientists study rock strata?

• They show the temperature of ancient oceans

• They indicate the relative age of rock layers

• They prove continental drift

• They measure radioactive decay

How old is Earth according to scientific evidence?

• 2.3 billion years old

• 3.5 billion years old

• 4.6 billion years old

• 5.8 billion years old

What does 'Impact' mean? The effect or influence of one thing on another.

• The effect or influence of one thing on another

• A type of physical force

• A random occurrence

• A scientific term

What is 'Evidence'? Information or data that supports a claim or conclusion, often gathered through observation and experimentation.

• Information or data that supports a claim or conclusion, often gathered through observation and experimentation.

• A type of scientific theory.

• An unrelated piece of information.

• A random guess.

Which natural resource is commonly used to create synthetic fabrics?

• Crude oil

• Sand

• Water

• Wood pulp

What does 'Synthetic' mean? Made through chemical processes, not occurring naturally in the environment.

• Made through chemical processes, not occurring naturally in the environment.

• Naturally occurring in the environment.

• A type of natural resource.

• A biological process.

What advantage do synthetic materials offer to society?

• They are always biodegradable

• They can be designed for specific purposes

• They are always more expensive than natural materials

• They only come from renewable resources