SCIENCE
ECOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
burning fossil fuels.
|
|
|
destroying vegetation that absorbs carbon dioxide.
|
|
|
using electrical labor-saving devices.
|
|
|
All of the above
|
Detailed explanation-1: -Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere.
Detailed explanation-2: -Human activities have greatly increased carbon dioxide levels in the atmosphere and nitrogen levels in the biosphere. Altered biogeochemical cycles combined with climate change increase the vulnerability of biodiversity, food security, human health, and water quality to a changing climate.
Detailed explanation-3: -The burning of fossil fuels, which rapidly releases carbon dioxide (CO2), a greenhouse gas into the atmosphere, increasing average global temperatures and causing ocean acidification.
Detailed explanation-4: -Reducing carbon emissions through low carbon technology – prioritising renewable energy resources, recycling, minimising energy use and implementing energy conservation measures.
Detailed explanation-5: -Carbon enters the atmosphere as CO2. CO2 is absorbed by autotrophs such as green plants. Animals consume plants, thereby, incorporating carbon into their system. Animals and plants die, their bodies decompose and carbon is reabsorbed back into the atmosphere.