Pollution Monitoring

To correctly match the protocols/conventions in List-I with the corresponding years in List-II, we need to identify the year in which each protocol or convention was established:

1. Kyoto Protocol - This protocol is associated with international efforts to curb greenhouse gas emissions. It was adopted in 1997.
2. Montreal Protocol - This protocol was designed to protect the ozone layer by phasing out the production of numerous substances responsible for ozone depletion. It was signed in 1987.
3. Bamako Convention - This convention deals with banning the import of hazardous wastes into Africa. It was adopted in 1998.
4. Basel Convention - This convention relates to controlling the transboundary movements of hazardous wastes and their disposal. It was adopted in 1989.

Now, let's match each from List-I to the correct year in List-II:

1. (A) Kyoto Protocol - (II) 1997
2. (B) Montreal Protocol - (I) 1987
3. (C) Bamako Convention - (IV) 1998
4. (D) Basel Convention - (III) 1989

Thus, the correct answer is: (A) - (II), (B) - (I), (C) - (IV), (D) - (III)

In the context of the National Ambient Air Quality Standards (NAAQS), several criteria air pollutants are identified. These include:

• Carbon Monoxide (CO): A colorless, odorless gas produced from vehicle emissions and industrial processes.
• Ozone (O₃): A reactive gas formed when sunlight reacts with pollutants such as volatile organic compounds (VOCs) and nitrogen oxides (NOx).
• Lead (Pb): A metallic air pollutant released from industrial emissions and historically from leaded gasoline.

The question asks which of the given options is not a criteria air pollutant. Among the provided options—CO₂ (Carbon Dioxide), CO, O₃, Pb—only Carbon Dioxide (CO₂) is not categorized as a criteria air pollutant under the NAAQS.

Correct Answer: CO₂

Itai-Itai disease is a painful condition caused by cadmium poisoning. Cadmium is a heavy metal which is highly toxic and is found in industrial pollutants. The disease was first identified in Japan, where it affected individuals who consumed rice irrigated with water contaminated by cadmium. This highlights the critical impact of long-term environmental exposure to cadmium on human health.

Therefore, the contamination of drinking water with cadmium is responsible for causing Itai-Itai disease.

The question pertains to identifying the treaty that specifically prohibits the import of hazardous wastes (including radioactive waste) into African nations.

Let's analyze each option:

1. The Basel Convention: This is a global treaty designed to reduce the movements of hazardous waste between nations, especially from developed to less developed countries. It does not focus exclusively on African nations.
2. The Capetown Convention: This convention relates to international interests in mobile equipment, like aircraft and railway, rather than hazardous wastes.
3. The Bamako Convention: This is specifically an African treaty that bans the import of all hazardous wastes and radioactive wastes into the continent of Africa. It is directly pertinent to the given question.
4. The Madagascar Convention: There is no widely recognized international environmental agreement by this name focusing on hazardous wastes.

Based on the analysis, the correct answer is: The Bamako Convention

The problem asks for the factors associated with ozone destruction in the stratosphere. To understand this, we need to analyze the effect of each of the provided options presented.

Factors affecting Ozone Destruction:

1. (A) CFCs: Chlorofluorocarbons (CFCs) are compounds that release chlorine radicals upon exposure to UV radiation. These chlorine radicals are highly effective at destroying ozone molecules. Hence, CFCs are directly associated with ozone depletion.
2. (B) Polar Stratospheric Clouds (PSCs): These clouds provide a surface for chemical reactions that release active chlorine compounds from CFCs, which in turn causes ozone destruction. Therefore, PSCs are indirectly associated with ozone depletion.
3. (C) UV-B: This type of ultraviolet radiation can break down ozone molecules; however, its role is more about being a consequence of ozone layer depletion, as more UV-B reaches the Earth when the ozone layer is thinner.
4. (D) UV-A: It is less energetic compared to UV-B and does not significantly interact with ozone molecules or contribute to their destruction.
5. (E) Cl radicals: Chlorine radicals are released from CFCs and are highly effective in catalyzing the breakdown of ozone molecules, clearly associating Cl radicals with ozone depletion.

Given the explanations above, we can conclude:

• (A) CFCs are associated with ozone destruction.
• (B) Polar Stratospheric Clouds help in the reactions leading to ozone depletion.
• (E) Cl radicals directly contribute to the destruction of ozone molecules.

Thus, the correct answer identifying the factors associated with ozone destruction, according to the options given, is: (A), (B), and (E) only.

The problem involves understanding ecological concepts related to how ecosystems manage waste. The key term here is the "ability of the environment to absorb and render removal of harmless waste and pollution." This concept is essential in environmental studies to comprehend how ecosystems handle pollution and waste naturally.

Let's analyze the options:

• Source function of ecosystem: This refers to the ability of an ecosystem to provide resources. It is not related to waste absorption.
• Sink function of ecosystem: This aptly describes the ability to absorb waste and pollution, rendering them harmless. This matches our problem's requirement.
• Carrying capacity of ecosystem: This term describes the maximum population size of a species that an environment can sustain indefinitely. It doesn't refer to managing waste.
• Optimal capacity of ecosystem: This is a less commonly used term and doesn't specifically refer to waste management.

From this analysis, the most suitable term that describes the ecosystem's ability to manage waste and pollution is the Sink function of ecosystem.