Halfway through rivers and some living world

What is the main difference between a long river profile and a cross river profile?

• A long river profile shows the river's depth at various points.

• A long river profile shows the river's gradient from source to mouth, while a cross river profile shows a cross-section of the river at a specific point.

• A cross river profile shows the river's length from source to mouth.

• A cross river profile shows the river's width at various points.

Which of the following is a process of river erosion?

• Traction

• Saltation

• Abrasion

• Deposition

What is the primary process responsible for the formation of a waterfall?

• Deposition of sediment

• Erosion of softer rock layers beneath harder rock layers

• Transportation of large boulders

• Formation of oxbow lakes

How does a meander form in the middle course of a river?

• Through the deposition of sediment on the riverbed

• By the river cutting through a resistant rock layer

• Due to lateral erosion and deposition on the inner and outer bends

• By the river flowing over a steep gradient

What is an oxbow lake?

• A lake formed by glacial activity

• A U-shaped lake formed when a meander is cut off from the main river

• A lake formed at the river's source

• A lake formed by volcanic activity

Which of the following best describes the changes in the River Tees from source to mouth?

• The river becomes narrower and steeper.

• The river becomes wider and shallower.

• The river becomes wider and deeper, with a gentler gradient.

• The river becomes narrower and deeper, with a steeper gradient.

What is the process of transportation in a river where small particles are carried in suspension?

• Traction

• Saltation

• Suspension

• Solution

Which feature is typically found in the upper course of a river?

• Oxbow lake

• Meander

• Waterfall

• Delta

Which of the following features is not a biotic component of an ecosystem?

• Vegetation (Flora)

• Water

• Wildlife (Fauna)

• Decomposers (Bacteria and Fungi)

Which global biome is predominantly found along the equator?

• Tropical Rainforest

• Hot Desert

• Deciduous Forest

• Tundra