Environmental Changes and Their Effects

What is one way humans modify the environment for transportation?

• Building skyscrapers

• Constructing railroads

• Planting trees

• Creating wildlife reserves

Which of the following is a positive consequence of building canals?

• Increased flooding

• Improved water transportation

• Loss of wildlife habitat

• Soil erosion

How do wetlands help in preventing floods?

• By acting as barriers

• By acting as a sponge and absorbing water

• By increasing rainfall

• By blocking rivers

What is a negative consequence of cutting down trees in forests?

• Increased animal population

• Improved air quality

• Loss of animal habitats (homes)

• More oxygen production

Which of the following is an example of an environmental modification for farming?

• Building dams

• Planting flowers

• Constructing highways

• Clearing forests

Why might clearing wetlands lead to increased flooding?

• Wetlands increase rainfall

• Wetlands act as natural sponges for water

• Wetlands block river flow

• Wetlands create more water

What impact does constructing railroads have on the land?

• They increase forest areas

• They require the land to be cleared

• They reduce construction in cities

• They encourage wildlife growth

What is a positive consequence of building canals?

• They destroy natural habitats

• They help transport goods and people

• They cause flooding

• They pollute drinking water

What is one reason why forests are important to the environment?

• They decrease oxygen levels

• They provide shade, oxygen, and habitats for wildlife

• They take up space that could be used for building

• They block rivers and streams

Why do people modify the environment?

• To make it more dangerous

• To improve entertainment options

• To meet their needs, like housing or transportation

• To make animals leave the area