Ex 2-5

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Across
  1. 4. Using a microwave is a time-.............................. method of cooking because it prepares food much faster than a traditional oven. (6)
  2. 6. Because children have weak immune systems, they are more .............................. to catching a cold during winter. (11)
  3. 8. Scientists are working hard to .............................. new species of plants in the deep Amazon rainforest. (8)
  4. 9. During the heavy storm, the stray cats found a .............................. place under the porch of an old house. (9)
  5. 10. If you leave all the lights and the television on when you go out, it is an energy-.............................. habit. (7)
Down
  1. 1. Although we want to travel everywhere, our budget is .............................., so we can only visit two cities this summer. (7)
  2. 2. Writing a long essay by hand is very time-.............................., so most students prefer using a computer to save their effort. (9)
  3. 3. To .............................. the spread of the virus, everyone is encouraged to wash their hands frequently and wear masks in public. (7)
  4. 5. We should wear sunscreen and a hat to .............................. our skin from the harmful effects of direct sunlight. (7)
  5. 7. One great .............................. of exercise is that it not only improves your physical health but also reduces stress. (7)