It could be increased greenhouse gas effect.
Answer:
It means you are always moving forward so why should you look back your not going there.
Explanation:
Answer:
D.
Explanation:
On 7th December 1941, Pearl Harbour, Hawaii was attacked with a surprise by Japanese Navy Air service. The destruction on harbour was massive. With the casualities of 3,500 American lives, the United States declared war on Japan on 8th December 1941 under Presidency of Franklin D. Roosevelt.
Therefore, the correct answer is option D.
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.
Colonists went through a starving period (C.) in which they ate rats and other inadequate sources of food
