If you have choices, it would be really helpful if you'd include them with your question, but I'd say
More than half of the forests in the Czech Republic have been destroyed by pollution.
Mecca receives 4.3 inches of rainfall a year, mostly in the winter months.
Frankfurt is the capital of Kentucky.
Answer:
Clouds form when air reaches its dew point. This can happen in two ways:
(1) Air temperature stays the same but humidity increases. This is common in locations that are warm and humid.
(2) Humidity remains the same, but temperature decreases