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.
Employee Survey Average Response Rates. Based on ten years worth of completed employee survey projects, the average EngagedMetrics response rate is 72.68%. However when it comes to estimating a response rate for your upcoming project, the reality is that each survey is different and there are no simple answers.