Title: Default for Exercise 4 - Advanced Exercises on Grammar, Punctuation, and Usage
Course: Applied English for Science and Technology

Q: A greenhouse is a glass building used to grow plants. | [...]
A greenhouse has transparent glass that allows the sunlight | [...]
to pass through, but does not allow the heat inside | [...]
to escape. The same affect occurs on the earth. | [...]
The suns radiation passes through the atmosphere to heat | [...]
the earth's surface. When heated, the earth's surface | [...]
produces infrared radiation, which has a longer | [...]
wavelength than that of sunlight. This infrared radiation |
rises into the atmosphere where gases, such as | [...]
carbon dioxide, prevents the infrared radiation from | [...]
escaping into space. The concentrations of these |
gases which are called greenhouse gases, control how much | [...]
infrared radiation escapes. The retained radiation heats |
the earth's atmosphere, thus keeping the planet warm. | [...]
A: Okay; Okay; Okay; Wrong; Wrong; Okay; Okay; Okay; Wrong; Wrong; Okay
Gap 1 offers: Okay; Wrong
Gap 2 offers: Okay; Wrong
Gap 3 offers: Okay; Wrong
Gap 4 offers: Okay; Wrong
Gap 5 offers: Okay; Wrong
Gap 6 offers: Okay; Wrong
Gap 7 offers: Okay; Wrong
Gap 8 offers: Okay; Wrong
Gap 9 offers: Okay; Wrong
Gap 10 offers: Okay; Wrong
Gap 11 offers: Okay; Wrong

Q: During the last century, the concentrations of greenhouse |
gases have increased substantially [Holman, 1985]. | [...]
Scientists believe that further increases could cause excess | [...]
warming of the earth's climate. Moreover, many scientists | [...]
believe this warming could produce side effects. | [...]
For example, the changing of the earth's wind patterns. | [...]
These wind patterns control the amount of rain received in a |
particular area. If the greenhouse gases warm the earth's climate | [...]
too much, areas that now receive plenty of rainfall could |
become deserts, moreover, some scientists speculate that | [...]
additional increases in warming could cause another |
effect, a rise in the ocean levels ["Greenhouse," 1990]. How would | [...]
this rise occur? An increase in global temperature would melt the |
polar ice caps, thus emptying more water into the oceans. | [...]
They also predict that this ocean | [...]
rise, which may well | [...]
be as high as 1 | [...]
meter could flood port cities and coastal lands. | [...]
A: Okay; Okay; Okay; Okay; Wrong; Okay; Wrong; Okay; Okay; Okay; Okay; Wrong; Wrong
Gap 1 offers: Okay; Wrong
Gap 2 offers: Okay; Wrong
Gap 3 offers: Okay; Wrong
Gap 4 offers: Okay; Wrong
Gap 5 offers: Okay; Wrong
Gap 6 offers: Okay; Wrong
Gap 7 offers: Okay; Wrong
Gap 8 offers: Okay; Wrong
Gap 9 offers: Okay; Wrong
Gap 10 offers: Okay; Wrong
Gap 11 offers: Okay; Wrong
Gap 12 offers: Okay; Wrong
Gap 13 offers: Okay; Wrong

Q: The gas that contributes most to the greenhouse | [...]
effect, is carbon dioxide [Houghton, 1990]. Carbon | [...]
dioxide cannot be seen, smelled, or tasted. | [...]
In fact, its not even considered a pollutant. | [...]
Plants use carbon dioxide in combination with |
chlorophyll, water, and sunshine for photosynthesis, which is | [...]
a process essential to life. Besides aiding in photosynthesis, it | [...]
will also absorb the earth's radiation. This gas occurs naturally in the |
atmosphere, however, man has dramatically increased | [...]
the concentration of carbon dioxide over the last twenty years. |
A: Okay; Wrong; Okay; Wrong; Okay; Wrong; Wrong
Gap 1 offers: Okay; Wrong
Gap 2 offers: Okay; Wrong
Gap 3 offers: Okay; Wrong
Gap 4 offers: Okay; Wrong
Gap 5 offers: Okay; Wrong
Gap 6 offers: Okay; Wrong
Gap 7 offers: Okay; Wrong