What is the main ingredient of smog?

What is the main ingredient of smog? Ozone Which of these is one of the most harmful components of smog? Smog is a serious problem in many cities and continues to harm human health. Ground-level ozone, sulphur dioxide, nitrogen dioxide and carbon monoxide are especially harmful for senior citizens, children, and people with heart and […]

What is an example of a gear?

What is an example of a gear? Gears can make things move in different directions, more quickly or slowly. Examples of common objects with gears are non-digital clocks, vehicles, drills, manual can openers and bicycles. Another use for gears is to “expand the physical limits of the human body.” Powered wheel chairs and lifts have […]

What are the functions of the cerebral cortex?

What are the functions of the cerebral cortex? The cerebral cortex, the largest part of the brain, is the ultimate control and information-processing center in the brain. The cerebral cortex is responsible for many higher-order brain functions such as sensation, perception, memory, association, thought, and voluntary physical action. What parts of the cerebral cortex are […]

Is the sentence grammatically correct?

Is the sentence grammatically correct? In order for a sentence to be grammatically correct, the subject and verb must both be singular or plural. In other words, the subject and verb must agree with one another in their tense. Had I known VS If I had known? “Had I known” has very much the same […]

How does mining affect erosion?

How does mining affect erosion? Mining, particularly gem mining, has been responsible for serious problems of soil erosion and river siltation. Extensive sand mining in some rivers has lead to the collapse of river banks, destabilising structures such as bridges and causing influx of salt water. How mining activities cause soil erosion? Phosphate-bearing rocks are […]

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