'The first level that agricultural businesses engage in is primary or extractive. Which is getting the resources, for example producing milk (or milking cows). The second level is called secondary. Which is manufacturing, for example packaging the milk and treating it. Lastly, the third level is, tertiary. Which is providing a service, for example bringing the milk to people's home.'
Explanation:
(<u>Paraphrased</u> answer from WorldCitizen so it is in complete sentences.)
There are now many small soay sheep in Scotland because the winters are not as brutally cold as they use to be. The climate in Scotland has been warming therefore the sheeps of small stature can easily survive now in Scotland, which was not possible in earlier years.