Tag: biology

Chemosynthetic microbes, such as sulfur-oxidizing bacteria, derive energy from the oxidation of inorganic sulfur compounds rather than from sunlight.

Sulfur dioxide is a major air pollutant that contributes to the formation of acid rain, which causes the deterioration of materials like leather and paper.

Volcanic eruptions are a significant natural source of sulfur dioxide, releasing large quantities of the gas into the atmosphere.

Statement B is incorrect because low temperatures and anaerobiosis inhibit or slow down decomposition rather than accelerate it. Warm, moist, and aerobic conditions favor rapid microbial decomposition. The other statements regarding humification, lignin-rich detritus, and humus resistance are correct.

Hydrogen sulfide (H2S) is a colorless gas known for its characteristic odor of rotten eggs.

The reduction of sulfur compounds, often by anaerobic bacteria, results in the production of hydrogen sulfide (H2S).

Heating value of coal is approximately $5000-6500 $  $kcal/kg$

Ignition temperature is the minimum temperature at which a substance catches fire. Kerosene has a lower ignition temperature than coke, allowing it to ignite and burn more rapidly.

The destructive distillation of coal produces coal gas, coal tar, and ammoniacal liquor (often referred to as amino acid liquor in some contexts). Wood and kerosene are not products of coal distillation.