Final Unit Test Review (PT, SFS, NHP)

Front

What type of plate boundary is this? Options: Plate, Divergent, Convergent, Transform

Back

Convergent

Answer explanation

A convergent boundary occurs where two tectonic plates collide, often leading to one plate being forced beneath another. This process can create mountains, earthquakes, and volcanic activity, distinguishing it from divergent and transform boundaries.

Front

Which type of plate boundary most commonly causes mountains to form? Options: Transform, Convergent, Divergent, Reform

Back

Convergent

Answer explanation

Mountains most commonly form at convergent plate boundaries, where two tectonic plates collide. This collision causes the Earth's crust to fold and uplift, leading to mountain formation.

Front

The Great Rift Valley in Africa and the Mid-Ocean Ridge were created by this boundary

Back

Divergent

Answer explanation

The Great Rift Valley and the Mid-Ocean Ridge are formed at divergent boundaries where tectonic plates move apart, allowing magma to rise and create new crust. This process is key to the formation of these geological features.

Front

What are the two types of crust?

Back

continental and oceanic

Answer explanation

The two types of crust are continental and oceanic. Continental crust forms the landmasses, while oceanic crust is found beneath the oceans. This distinction is fundamental in geology.

Front

What type of event is most likely to occur at this boundary? Options: Earthquake, Volcano Eruption, Tornado, Mountain Building

Back

Earthquake

Answer explanation

At tectonic plate boundaries, stress builds up and is released as earthquakes. While volcanoes can occur at some boundaries, earthquakes are more common due to the movement of plates. Tornadoes and mountain building are unrelated to this context.

Front

Which piece of evidence did Wegener use to prove continental drift? Options: The shape of the continents, Similar fossils found on separate continents, Matching coastlines and mountain ranges on different continents, All of the above

Back

All of the above

Answer explanation

Wegener used multiple pieces of evidence to support continental drift, including the shape of the continents, similar fossils found on separate continents, and matching coastlines and mountain ranges. Therefore, the correct answer is 'All of the above'.

Front

What does the theory of continental drift state?

Back

The continents were once joined in a super-continent and have moved over time

Answer explanation

The theory of continental drift posits that the continents were once part of a single super-continent called Pangaea, which gradually broke apart and drifted to their current positions over millions of years.

Front

What is the force that moves the continents?

Back

Convection

Answer explanation

The force that moves the continents is convection, which occurs in the Earth's mantle. Hot material rises and cooler material sinks, creating currents that drive the movement of tectonic plates.

Front

In the Atlantic ocean, where is the youngest seafloor located? Options: Towards the edges, near the eastern and western continents; Towards the middle of the ocean; Towards the north and south poles; Young seafloor is located randomly throughout the ocean

Back

Towards the middle of the ocean

Answer explanation

The youngest seafloor in the Atlantic Ocean is found towards the middle, specifically at mid-ocean ridges where new crust is formed. This contrasts with older seafloor located near the continents.

Front

Scientists have observed that the continents move apart or come together at speeds of a few centimeters per ____.

Back

year

Answer explanation

The correct answer is 'year' because scientists measure the movement of continents, which occurs at a rate of a few centimeters annually, not over longer periods like decades or centuries.