the air. Rainforests have a carbon(碳) reduction nearly equal to half of what is in the air. About half of that is in the Amazon. Another case in point is a big snake called the bushmaster that lives in the Amazon.Today, millions of people use medicines made from its venom(毒液)to ...
CO2 releases into the atmosphere in a ton of ways. The largest source of natural carbon emissions is the exchange of carbon dioxide between the oceans and the atmosphere. Animals and plants also emit CO2 through the process of respiration (breathe in oxygen, breathe out CO2)....
What Is Your Carbon Footprint?Carbon dioxide' is a form of air pollution. The term "carbon footprint"is often defined as the annual amount of carbon dioxide emitted when a country burns fossil fuels (化石燃料), such as coal, oil, and natural gas.Reducing a country's carbon footprint can...
Plants produce carbon dioxide through cellular respiration. The amount of CO2 they release, however, is much less than the amount of CO2 they consume through photosynthesis. Photosynthesis releases oxygen gas as a byproduct and the oxygen diffuses out through the stomata of the leaves. Plants also...
Carbon sinks remove carbon from the atmosphere and convert it into a form that can be locked away for days, years, or millennia. These carbon sinks are important to the carbon cycle as without them atmospheric carbon would rise sharply, disrupting the Earth's climate....
解析 C。A 选项“Drive a gas-guzzling car”开耗油量大的车增加碳排放;B 选项“Use air conditioning all day”整天开空调耗电增加碳排放;C 选项“Plant more trees”种树可以吸收二氧化碳减少碳排放;D 选项“Burn a lot of waste”燃烧大量垃圾增加碳排放。
Hilary Brueck
Trees keep our air fresh by absorbing carbon dioxide and 1 oxygen. In one year, an acre of trees can absorb as 2 carbon dioxide as is produced by a car driven up to 8,700 miles. Trees lower air temperature by evaporating(蒸发) water in their 3 . ...
Louisville's mayor has instituted a curfew through the weekend, and Gov. Andy Beshear called up the National Guard for “limited missions.” Protesters streamed through the streets, where stopped cars honked and one man leaned out a sunroof, his fist in the air and shouted, “Black l...
Suction.Pipes inserted into or below the foundation slab are connected to a vent fan that pulls radon from below the house and out into the open air. Depressurization.This generally involves drilling a hole in the basement floor and extending a pipe beneath the slab of the house. The pipe ...