The correct answer is empirical evidence.
Empirical evidence is the part of scientific method and it is the information that comes from the research or experiment in the form of measurable data. Before any pieces of empirical data are collected, scientists need to design their research methods (forming a hypothesis).
Answer:
So Medium-term goals may take from two months to three years to achieve. Long-term goals require three or more years to achieve. And also Long-term goals may be built upon short-term goals.
Explanation:
A.<span> Air pollution............................</span>
Here's a couple of slogans that I have found
Tbh I really don’t know I’m just trying to cheat in peace