Answer:
They are rigid and move around on tip of the asthenosphere. a)
Answer:
Explanation:
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Answer:
Automobiles release hydrocarbons that react to form pollutants in dry air.
Explanation:
- As carbon from the gasoline mixes with the air it reacts and starts to burn and this burning of hydrocarbon in the air produces heat, smoke, and gases, as well as chemical byproduct like water and carbon particulate matter.
- 22.38% of CO2 is produced by burning one gallon of petroleum. So, for the hydrocarbon to get successfully converted into carbon dioxide and produce carbon monoxide in the air it needs to react and burn, and CO is the result of not a sufficient amount of O2 in the air.
- Various automobiles release the nitrogen sulfur into the air and soil and give sooty dust and particle sizes that can change the composition of the further atmospheric cycle.
- As earth air is composed of <u>78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide</u>. The more gases that are released more spread the pollutant content of the air.
Answer:
Option (D)
Explanation:
The seafloor spreading refer to the condition where the lithospheric plates move away from one another. This results in the addition of new materials along the mid oceanic ridge. If this continues at a greater rate in comparison to the rate of subduction then it results in the expansion of the earth's surface, making the earth grow larger.
But in nature, this rate of spreading is balanced by the rate of subduction. This is how the plate motion works on earth.
Thus, the correct answer is option (D).
Its lengthy borders touch Germany and Belgium in the north, the Atlantic Ocean in the west, and the Pyrenees mountains and Spain in the south. It also borders the Mediterranean sea in the southeast, and the Alps, Switzerland and Italy in the east.