Environmental Science MCQs

✅ The correct answer is option C.
According to the Stefan-Boltzmann law, the radiative energy emitted by one square meter of an object is equal to a constant multiplied by its temperature raised to the fourth power.

✅ The correct answer is option B.
Superbugs are strains of bacteria that are resistant to several types of antibiotics. Each year these drug-resistant bacteria infect more than 2 million people nationwide and kill at least 23,000, according to the U.S. Centers for Disease Control and Prevention (CDC).

✅ The correct answer is option A.
In an oil trap formed by an anticline, natural gas accumulates on top, oil in the middle, and groundwater at the bottom.

✅ The correct answer is option D.
The Chipko movement or Chipko Andolan, was a forest conservation movement in India. It began in 1970s in Uttarakhand, then a part of Uttar Pradesh (at the foothills of Himalayas) and went on to become a rallying point for many future environmental movements all over the world.

✅ The correct answer is option D.
Soil chemistry is considered an edaphic factor.

✅ The correct answer is option B.
A food web (or food cycle) is the natural interconnection of food chains and a graphical representation (usually an image) of what-eats-what in an ecological community. Another name for food web is consumer-resource system.

✅ The correct answer is option B.
GM foods genetically modified food.

✅ The correct answer is option B.
The actual rate at which the temperature drops with altitude is called the environmental lapse rate. In the troposphere, the average environmental lapse rate is a drop of about 6.5 °C for every 1 km (1,000 meters) in increased height.

✅ The correct answer is option A.
During the winter in the Northern Hemisphere, the “land of the midnight sun” would be found: in high latitudes. During the winter solstice in the Northern Hemisphere, the day is less than 12 hours long and is increasing with each passing day.

✅ The correct answer is option E.
The name given to a liquid drop of dew that freezes when the air temperature drops below freezing is frozen dew.