Tag: commercial applications

Quizzes (170) Questions (1551)

Questions Related to commercial applications

Multiple choice commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

Melanornia (skin cancer) is associated with

  1. ozone accumulation

  2. ozone depletion

  3. acid rain

  4. allergens
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ozone depletion allows more harmful UV radiation to reach Earth's surface, which damages skin cells and increases the risk of melanoma (skin cancer). Ozone accumulation would have the opposite effect, while acid rain and allergens are not directly linked to skin cancer.

Multiple choice commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

What does high flying crafts deplete?

  1. Atmosphere

  2. Ozone Layer

  3. Biosphere

  4. Hydrosphere
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

High-flying aircraft, particularly supersonic jets, release nitrogen oxides and other pollutants directly into the stratosphere. These substances catalyze the breakdown of ozone molecules, leading to the depletion of the ozone layer.

Multiple choice commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

What does a single chlorine free radical destroy?

  1. Ultraviolet radiations

  2. Atmosphere

  3. Biosphere

  4. Ozone layer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Chlorine free radicals act as catalysts in the stratosphere, where they react with ozone (O3) to form oxygen (O2) and chlorine monoxide. This process destroys ozone molecules, which is the primary cause of ozone layer depletion.

Multiple choice commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

Depletion of ozone layer published in scientific journals, in

  1. 1950s

  2. 1990s

  3. 1970s

  4. 1980s
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Scientific evidence regarding the depletion of the ozone layer, particularly the role of CFCs, gained significant attention and was widely published in the 1980s following the discovery of the Antarctic ozone hole in 1985.

Multiple choice commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

Which chemical is a 'ozone' depleting solvent?

  1. PAN

  2. CFCs

  3. Carbon tetrachloride

  4. Nitrogen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Carbon tetrachloride (CCl4) is a well-known ozone-depleting substance historically used as a solvent in industrial and laboratory applications. While CFCs are also ozone-depleting, the question specifically asks for a solvent.

Multiple choice commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

What is involved in ozone depletion?

  1. Chlorofluorocarbons (CFCs)

  2. Carbon tetrachloride (CCl4)

  3. Carbon tetrafluoride (CF4)

  4. All of above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Chlorofluorocarbons (CFCs) and carbon tetrachloride (CCl4) are both significant ozone-depleting substances. Carbon tetrafluoride (CF4) is also recognized as a greenhouse gas with potential atmospheric impacts, making all listed options contributors to the broader issue.

Multiple choice commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

At which of the following places First Global Conference on depletion of Ozone layer was held?

  1. Geneva

  2. Vienna

  3. London

  4. Frankfurt
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Vienna Convention for the Protection of the Ozone Layer was the first global conference and treaty, held in 1985, to address the issue of ozone depletion.

Multiple choice commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

The Hydrochlorofluorocarbons (HCFCs) are the compounds which have the following molecules:HydrogenCarbonChlorineFluorineWhich among the above plays the most important role in Ozone depletion?

  1. Hydrogen

  2. Carbon

  3. Chlorine

  4. Flourine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In HCFCs, the chlorine atom is the primary agent that is released in the stratosphere and participates in the catalytic cycle that destroys ozone molecules.