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.
Answer:
The first one in column 1 goes to the 4th one in column 2
The second one in column 1 goes to the 1st one in column 2
The third one in column 1 goes to the 3rd one in column 2
The fourth one in column 1 goes to the 2nd one in column 2
Explanation:
Population means the number of people in a geographic area. It can also be used for subgroups of people or animals.
Streak i think you may want to wait for a better answer.