WG2B DOL

Who invented terrace farming?

• The Aztecs

• The Inca

• The Mayans

• The Egyptians

Why is terrace farming beneficial on slopes?

• It increases the speed of water flow

• It prevents soil nutrients from being washed away

• It requires less labor

• It is cheaper than other methods

How does terrace farming help in reducing soil erosion?

• By increasing the slope of the land.

• By allowing water to flow freely.

• By creating level terraces that slow down water flow.

• By removing all vegetation from the land.

Why is terrace farming considered labor-intensive?

• It requires constant irrigation.

• It needs frequent soil replacement.

• It involves significant labor to construct and maintain.

• It demands daily planting of crops.

What structures are used to enclose polders and keep water out?

• Bridges

• Tunnels

• Dikes

• Walls

What is one of the main challenges that polders help to address?

• Deforestation

• Flooding

• Air pollution

• Earthquakes

What is the first stage in the process of land reclamation?

• Draining the area using pumps

• Constructing a dike around the area

• Sowing reeds by aircraft

• Burning reeds for fertilizer

A reservoir is best described as…

• Any large collection of water in storage

• A large source of groundwater flowing to the surface

• Man made-lake that forms behind a dam

Which of the following is a reason to build a dam?

• Lowers the temperature of an area

• Helps increase the reflection of UV rays by water

• Helps to store water for future use

Which of the following is the best description of a dam?

• A man-made barrier to stop the flow of surface water

• A large collection of spring water trapped on the surface

• Anything that slows down the flow of water naturally