Changes to Soil pH. If vinegar concentrates are added to the soil instead of being sprayed onto plant foliage, they kill weeds by lowering the soil pH to a level that cannot sustain the plants. Depending on the soil type and the weather, this acidifying effect can take from a few months to a year.
Engagement rate is the percentage of people who saw a post that liked, shared, clicked or commented on it. To see the engagement rate for your posts: 1  At the top of your Page, click Insights. 2  Click Posts. 3  Scroll down to All Posts Published.
Globally, Facebook ads cost 21 cents per click in the fourth quarter of 2013 when purchased on a cost-per-click basis. The average cost-per-click for Facebook ads (when purchased on a per-click basis) increased 24% in 2013, world-wide. (this is not a surprise. Popularity always increases costs.