The human enzyme that breaks down hydrogen peroxide in the body is found in which organelle? MCQ with Answer and Explanation

Explanation:
Prokaryotic cells (bacteria, archaea) are characterized by the absence of a true, membrane-bound nucleus; their genetic material is located in a nucleoid region. Eukaryotic cells (plants, animals, fungi, protists) possess a true nucleus and various membrane-bound organelles like mitochondria, ER, and Golgi. Plant cells are distinguished from animal cells by the presence of a rigid cell wall made primarily of cellulose, along with chloroplasts and a large central vacuole. Thus, statements 1 and 2 are correct.

Explanation:
Methane (CH₄) is produced by methanogenic bacteria in anaerobic conditions of flooded rice paddies. It is a potent greenhouse gas, with a global warming potential many times that of CO₂. Nitrous oxide comes from fertilizers, CO₂ from fossil fuels, CFCs from refrigerants. Methane also comes from livestock.

Explanation:
Fisheries, or aquaculture, involves the breeding, rearing, and harvesting of fish, shellfish, algae, and other aquatic organisms in various water environments for food, commercial, and recreational purposes. It includes both inland fisheries (freshwater like ponds, rivers) and marine fisheries (saltwater like oceans). It is a major source of protein and livelihood globally.