They’ve theme is that the power belongs to the people and that it is the responsibility of the equal people to correct the government
The sentence is missing two words, "will" and "a."
the corrected version would be:
In today’s blog post, I //will// teach you how to make //a// watermelon salad with feta and mint! With less than five ingredients, it’s a feast for the eyes and the palette.
My question was deleted because it was "incomplete", but I'll answer again.
Simple
This sentence is simple because it contains one singular idea. It may be incorrectly identified as compound because the subject is compound (Forest rangers and volunteers). This is an easy mistake.
Hope this helps!! Good luck, mate. :)