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.

[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.


[Q]: Question: Sinclair is looking at the effects that factories are having on developing countries natural resources. He studies one country that is building fewer factories. In that country, the natural resources are likely experiencing _____ demands because fewer factories are being built. 
 Answer: less
[A]: Developing nations will also increase demands on natural resources as they build more factories.


[Q]: Question: If Milo notices that the frequency of his electromagnetic wave seems to be decreasing, what does that say about the energy of the wave? 
 Answer: it's decreasing
[A]:
The higher the frequency of an electromagnetic wave, the greater its energy.