Hello there!
The missing word is eye positioning
Good luck!
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Early man had constant conflict with the environment. Nature and the environment do not have feelings or emotions or reasoning and therefore cannot engage in compromise. Early man constantly dealt with conflict with the environment, this would include adapting to the harsh seasonal weather conditions and other extreme weather which would expose early man to conditions that could easily kill him if not prepared. Early man in a hunter gatherer capacity would have to attempt to find some sort of stability in order to survive basic needs of food and shelter, this critical components could easily be wiped out, even with the knowledge of the environment and seasonal weather changes, due to poor planning and/or extreme situations that destroyed food sources like freezing temperatures or high winds.
One right during a verbal conflict is to be able to keep and express one's own opinions - a person during a verbal conflict does not have to obligation to abandon their views.
One responsibility is to respect the other speaker and their views -they might not agree with them, but they should not disrespect their speaker.
Im not sure what the answer is that you want but im guessing its True or false. And the answer is false, the longest river is the nile river at 4 thousand something miles. Im not so sure about the second part of your question. Hopefully this is what you wanted, have a great day!