Biology Practice: Pollution (Mock Test 4 - Expert: Experimental Evidence & Case Studies)
1. In a laboratory setup, a closed glass chamber containing green plants is exposed to sunlight. Over time, the temperature inside the chamber becomes higher than the outside environment. This experiment logically demonstrates:
2. Clinical Data: Workers in a stone-crushing industry often suffer from 'Silicosis'. This is logically a result of long-term exposure to:
3. Expert Analysis: Why does 'Acid Rain' cause more damage to marble (Calcium Carbonate) statues than to granite ones?
4. If a factory releases hot water into a river, the 'Biotic Potential' of the river decreases because:
5. Logical Inference: In the absence of an 'Ozone Layer', which physiological process in plants would be most severely hindered?
6. Data Interpretation: A sample of river water has a BOD of $450\text{ mg/L}$. What is the logical conclusion about its quality?
7. Why are 'Chlorofluorocarbons' (CFCs) particularly harmful to the atmosphere even in small quantities?
8. In a food chain: Grass $\rightarrow$ Grasshopper $\rightarrow$ Frog $\rightarrow$ Snake $\rightarrow$ Peacock. If the soil is sprayed with DDT, which organism will logically have the highest concentration?
9. "Oil Zapper" is an expert biological tool developed to treat oil spills. It consists of:
10. Logical Step: What is the primary purpose of an 'Electrostatic Precipitator' in a coal-fired power plant?
11. 'E-waste' is often incinerated or landfilled. Which toxic gas is logically released if PVC plastics in e-waste are burnt?
12. Why is 'Lead' added to some paints and petrol considered an expert-level neurotoxin?
13. In 'Eutrophication', why do fish eventually die even if there is an 'Algal Bloom' (lots of plants)?
14. What is the logical reason for the 'Ice Caps Melting' due to Global Warming?
15. 'Incineration' is a waste disposal method involving high-temperature combustion. It is logically best suited for:
16. If a person is exposed to constant noise of $150\text{ dB}$, what is the logical immediate clinical effect?
17. Logical Inference: Why is 'Composting' better than burning garden waste?
18. "Biomagnification" logically implies that the most dangerous level for human toxins in an ecosystem is the:
19. Which international agreement focuses on reducing the emission of Greenhouse gases like $CO_2$?
20. Logical Outcome: If all 'Decomposers' were killed by soil pollution, what would happen?
