About how many neurons are in the brain? 10,000 100 billion 10 trillion 100 million

There are approximately 100 billion (100,000,000,000) neurons in the human brain. That is roughly 12 times the population of the earth!

True. very true: ) tell me if this is correct

Labor costs would be a large factor holding production of shade-grown coffee back. if it requires higher labor costs to receive a smaller benefit per hectare, then these costs would be prohibitive on expanding this practice to all coffee growing.