Multiple choice

Which of the following options helps to keep tropical plants warm during the winters?

  1. nurseries

  2. gardens

  3. orchards

  4. greenhouses

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Greenhouses are structures designed to trap heat from the sun, keeping plants warm during cold seasons. They work by allowing sunlight in but preventing heat from escaping, similar to the atmospheric greenhouse effect. Nurseries, gardens, and orchards are locations or plant collections, not structures that trap heat.