The ultraviolet radiation from the sun can produce long-term effects on human beings and animals, but not on plants.
举一反三
- Ultraviolet rays from the Sun can cause which of the following?
- Questions 19 to 21 are based on passage 3-2._____ A: Plants cannot see. B: Plants are invisible. C: Human beings cannot recognize certain species of plants. D: Plants are damaged rather than protected by human beings.
- Why can many animals ran faster than human beings?
- The method in which the greenhouse effect takes place is by A: gamma radiation from the earth is absorbed into the atmosphere by particulates B: beta radiation from the Sun is absorbed by water vapor C: ultraviolet radiation from the Sun is absorbed by ozone D: infrared radiation from the Earth's surface is absorbed by multiple gases in the atmosphere E: cosmic radiation from deep space is absorbed by gases in the atmosphere
- Animals and plants can live on the earth because ________. A: it is the right distance from the sun B: it has plenty of water C: the sun gives them warmth and light D: all of the above