FUNDAMENTALS OF COMPUTER

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BASIC COMPUTER CONCEPTS

IMPACT OF COMPUTERS ON WORK ENVIRONMENTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
There are many sources of air pollution in the United States and around the world. Some are natural sources, and others come from human activities. Which example is a natural source of air pollution?
A
car exhaust fumes
B
dust from construction sites
C
methane gas from cow manure
D
smoke from the burning of fossil fuels
Explanation: 

Detailed explanation-1: -The largest source of greenhouse gas emissions from human activities in the United States is from burning fossil fuels for electricity, heat, and transportation. EPA tracks total U.S. emissions by publishing the Inventory of U.S. Greenhouse Gas Emissions and Sinks.

Detailed explanation-2: -There are natural processes that create air pollution-such as sulfur and chlorine gases from volcanic activity, smoke and ash from wildfires, dust storms, and biological decay-but most pollution enters the air from human-made (anthropogenic) sources.

Detailed explanation-3: -The major outdoor pollution sources include residential energy for cooking and heating, vehicles, power generation, agriculture/waste incineration, and industry.

Detailed explanation-4: -China, with more than 10, 065 million tons of CO2 released.

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