Answer: Photosphere
Explanation:
Photosphere, visible surface of the Sun, which is most of the Sun's light that reaches Earth directly.
Their progress and wealth is highly dependent on the harvests, and the price of grain. They probably have to import some industrial products and if they had a bad year (weather, other catastrophies, poor technology) they can't get the necessary amount of industrial products in exchange for their surplus e. g. in grain. There are so many standards and requirements about the quality of food production that no country can survive solely on agriculture without high quality technology (machines, unharmful fertilizers, research-based breeding, etc.).
Answer:
a concession to something derogatory or prejudicial a compromise of principles.
Explanation:
The Nile river is the longest river in the world, followed by the Amazon river which is the second longest.