Unit 2 Exam

Front

How old is the Earth?

Back

Approximately 4.6 billion years.

Front

What is the range of the pH scale?

Back

The pH scale operates on a range of 0-14.

Front

How do metamorphic rocks form?

Back

Metamorphic rocks form through heat and pressure.

Front

What is the current geological era, period, and epoch?

Back

Cenozoic era, Quaternary period, Holocene epoch.

Front

What does Bohr's second postulate state?

Back

While revolving in these discrete orbits, the electrons do not radiate energy.

Front

What is lithification?

Back

Lithification is the process of turning sediments into solid rock.

Front

What is the definition of metamorphism?

Back

Metamorphism is the process by which rocks change due to heat, pressure, or chemically active fluids.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is the significance of the Cenozoic era?

Back

The Cenozoic era is known as the 'Age of Mammals' and marks the rise of mammals and birds.

Front

What is the definition of an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.