Understanding Greenhouses

What is the ideal orientation for a greenhouse to maximize sunlight exposure?

• Facing west

• Facing east

• Facing south

• Facing north

What is the primary function of ventilation in a greenhouse?

• To trap more heat

• To prevent overheating

• To increase humidity

• To block sunlight

Which material is most effective for retaining heat in a greenhouse at night?

• Glass

• Water barrels

• Plastic

• Aluminum

What is the 'aletto effect' in the context of greenhouses?

• The cooling effect of water

• The reflection of light by polycarbonate

• The effect of ventilation on humidity

• The absorption of heat by dark surfaces

Why are polycarbonate panels preferred over glass for modern greenhouses?

• They are cheaper

• They are stronger and provide UV protection

• They are lighter

• They are more transparent

How much stronger is polycarbonate compared to glass?

• 250 times

• 150 times

• 100 times

• 50 times

What is a key daily task in managing a greenhouse?

• Repainting the walls

• Watering the plants

• Opening and closing vents

• Changing the soil

Why might supplemental lighting be necessary in a greenhouse during winter?

• To extend daylight hours for plants

• To increase humidity

• To reduce heat loss

• To prevent mold growth

What is the main benefit of using automatic vent systems in greenhouses?

• They reduce the need for manual labor

• They enhance soil quality

• They decrease water usage

• They increase plant growth

What role does sunlight play in a greenhouse?

• It only helps in ventilation

• It provides both heat and energy for plant growth

• It only provides light

• It only provides heat