Earth Science

The laws of superposition and original horizontality are usually best applied to _____.

• sedimentary rocks

• igneous rock

• metamorphic rocks

What scientist is credited with proposing the principle of uniformitarianism?

• James Hutton

• William Smith

• John Johnson

Nicolaus Steno proposed the most basic principle of relative dating know as the law of ______________________________.

• correlation

• conglomeration

• superposition

_________________________ is the type of unconformity consisting of tilted sedimentary rocks that are overlain by younger, more flat-lying sedimentary rocks.

• Angular unconformity

• Disconformity

• Unity conformity

The physical, chemical, and biological laws that operate today also operated in the geologic past is related to the principal of __________________________.

• atmospheres

• correlation

• uniformitarianism

_______________________ is the term used to describe a break that separates older metamorphic rocks from younger sedimentary rocks immediately above them.

• A disconformity

• A disharmony

• A nonconformity

The geological processes that molded the Earth’s features today are__________________________________.

 

 

basically the same as they were in the geologic past

• much different than thousands of years ago

• unable to be forseen

• basically the same as they were in the geologic past

Which is an idea geologists use as they study Earth?

• The rock record provides evidence of past geological events and life forms

• The rock record provides evidence of past geological events and life forms

The law of superposition states that in an undeformed sequence of sedimentary rocks, each layer is  _____.

• younger than the rocks it intrudes into

• older than the rocks it intrudes into

• always made of the same materials as the rock around it

The footprints of hominids are an example of what type of fossil?

• trace fossil

• fake fossil

   

•  

  carbonized remains