Answer:
Yes.
Explanation:
Yes, the benefits of projects to dam rivers in the Columbia Basin have outweighed their cost because these projects provides large benefits to the Columbia. They produces energy from these projects of dams as well as stored the water which can be used for agriculture purposes. So for producing energy from these dams, more money should be invested which increase and outweighed the cost. Due to these projects, more barren land can be converted into fertile agricultural land.
"Thanks a bunch! I really need an extra dose of points right now!”
Answer:
Humans cause change in the environment as there is overwhelming evidence that human activities, especially burning fossil fuels, are leading to increased levels of carbon dioxide and other greenhouse gases in the atmosphere, which in turn amplify the natural greenhouse effect, causing the temperature of the Earth's atmosphere, ocean, and land surface to increase. That greenhouse gases "trap" infrared heat is well established through laboratory experiments going back to 1856 when Eunice Foote first measured the effect.The well-documented trend of increasing of CO2 in the atmosphere is caused by the burning of fossil fuels and massive land cover changes. The "smoking gun" that shows clearly that human activities are responsible for recent increases in carbon dioxide in the atmosphere is provided by carbon isotopes (carbon atoms of different atomic weight). These isotopes allow scientists to "fingerprint" the source of the carbon dioxide molecules, which reveal that the increased CO2 in the atmosphere is caused by fossil fuel burning also.
Ships in those days depended on sails to get around. That being said, they'd usually take anywhere from 8 to 12 weeks.
Answer:
the answer is A. all of these options
