Q2 Benchmark Exam Practice 2

Front

What is a river delta?

Back

A river delta is a landform that forms at the mouth of a river where it meets a body of water, characterized by the deposition of sediment carried by the river as the flow velocity decreases.

Front

What causes sediment to be deposited in a river delta?

Back

Sediment is deposited in a river delta when the river slows down, allowing particles to settle out of the water.

Front

What does it mean for an object to move at a constant speed?

Back

An object moving at a constant speed travels the same distance in equal intervals of time without speeding up or slowing down.

Front

What is deposition in geological terms?

Back

Deposition is the geological process where material is added to a landform or land mass, often through the settling of sediment carried by water, wind, or ice.

Front

What is the role of rivers in shaping valleys?

Back

Rivers shape valleys through erosion, carving out the landscape as they flow, especially in steep and narrow areas.

Front

What is the difference between erosion and deposition?

Back

Erosion is the process of wearing away rocks and soil, while deposition is the process of laying down sediment in a new location.

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of ancient organisms, often found in sedimentary rock.

Front

How do fossils form?

Back

Fossils form when organisms are buried by sediment, which protects them from decay and allows minerals to replace organic material over time.

Front

What is the significance of finding fossils in different layers of rock?

Back

Finding fossils in different layers of rock indicates the relative age of the organisms and the environmental conditions at the time they lived.

Front

What is the principle of uniformitarianism?

Back

The principle of uniformitarianism states that the processes that shape the Earth today are the same as those that occurred in the past.