Answer:
The green revolution of the 1960s and 1970s depended on applications of fertilizers, pesticides and irrigation to create conditions in which high-yielding modern varieties could thrive. It provided the basis for a quantum leap forward in food production.
Explanation:
powers not explicitly reserved for the federal government are given to the state's
Answer:
the picture is a little blurry, I can't quite see it
Explanation:
you can do this! never give up!
Primary source is the firsthand experience and evidence of an event, where the any given information first appeared (initial report). The secondary source uses the first source in order to give its information (for example: document that analyzes primary source documents).
When analyzing historical event a researcher use a secondary source instead of a primary source because he uses the primary source as the imput information (facts, events, dates, names) in order to analyze them, connect them and explain them in his work.
