In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
One example is below.
Q: Question: The government of Canada is considering implementing less carbon taxes across the country. If these taxes were implemented, the amount of carbon dioxide emissions in the country would be expected to 
 Answer: rise
A: The carbon taxes encourage people to use less fossil fuel, which reduces carbon dioxide emissions.
Rationale: As mentioned in the input Question and Answer, the output statement constructs the explanation correctly. By decreasing the taxes, carbon dioxide emissions will rise, so the explanation is correct. 
Q: Question: Lana is noting that the wind lately has been very weak. Lana can now tell that the air pressures over the Earth's surface have had differences that are 
 Answer: lesser
A:
Differences in air pressure over the surface of the Earth result in wind. The greater the differences in air pressures, the stronger the wind.