Answer:
Drought in the Sahel in the 1970s and 1980s made it look like the desert was expanding, because the reduction of rainfall at the desert margin (the Sahel) caused a reduction in vegetation. Warm, moist air rises near the equator, then cools and condenses its moisture, which falls as rain or snow
Answer:
On the freeway, maintain a 3 second following distance. If the road is slippery or wet, adjust your distance to four or more seconds.
Explanation:
Every time climate conditions change, your vehicle will have variations in the way it reacts. So, if in regular conditions you should maintain a 3-second following distance, in other unusual conditions you must adjust this setting to be more cautious, and prevent any unforeseen events that could lead to an accident.
The three countries are Spain England and France
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