1 the author used this clie to tell us that sue miss her mum and dad
Answer:
<h2>Hope this helps uu</h2>
Explanation:
<u>Data from an experiment is a primary source. Secondary sources are one step removed from that. Tertiary sources summarize or synthesize the research in secondary sources. For example, textbooks and reference books are tertiary sources</u>
Answer:
There are real differences in the populations in different countries. Demographics are particularly important - that's things like average age, or where people live.
Explanation:
But not all testing data is the same - some countries record the number of people tested, while others record the total number of tests carried out (many people need to be tested more than once to get an accurate result).
