Benefits and Drawbacks of Greenhouses

What is one main advantage of using a greenhouse for growing plants?

• It makes plants grow slower.

• It keeps the temperature stable, allowing plants to grow earlier and stay healthy longer.

• It attracts more pests.

• It reduces the amount of light plants receive.

Why can you grow a wider variety of plants in a greenhouse?

• Because greenhouses are always cold.

• Because you can control the environment, allowing plants that don’t usually grow in your area to thrive.

• Because greenhouses use less water.

• Because greenhouses are smaller.

How does a greenhouse help protect plants from outside threats?

• By letting in more pests.

• By keeping out pests and bad weather.

• By making the soil dry.

• By reducing humidity.

What effect does higher humidity in a greenhouse have on plants?

• It causes plants to lose more water.

• It helps prevent water loss and maintains the humidity needed for some plants.

• It makes the air too dry for plants.

• It stops plants from growing.

What is a disadvantage of setting up a greenhouse?

• It is always free to build.

• It can be expensive to set up and may increase heating bills.

• It never needs cleaning.

• It always reduces plant growth.

Which pest is mentioned as still being a problem in greenhouses?

• Rabbits

• Whiteflies

• Mice

• Slugs

Why can pollination be a problem in greenhouses?

• Because greenhouses are too noisy.

• Because insects that pollinate plants often can’t get in.

• Because greenhouses are too dark.

• Because plants don’t need pollination.

What regular maintenance might a greenhouse require?

• Painting the plants

• Cleaning and repairing broken glass panes

• Adding more soil every day

• Watering the roof

How can broken glass panes in a greenhouse affect plant growth?

• They let in more pests and can change the temperature and light inside.

• They make the greenhouse smell better.

• They help plants grow faster.

• They have no effect.

Which of the following is NOT an advantage of using a greenhouse?

• Ability to grow out-of-season crops

• Higher humidity for some plants

• Guaranteed no pests ever

• Protection from bad weather