Our Environment — Practice Quiz

Green plants, Algae, Bacteria that can photosynthesize

Producers are organisms that can make their own food using sunlight through photosynthesis. Green plants, algae, and photosynthetic bacteria all have chlorophyll and can produce organic compounds from inorganic substances using solar energy.

They break down dead organisms, They include bacteria and fungi, They recycle nutrients back to soil

Decomposers like bacteria and fungi break down dead remains and waste products of organisms, converting complex organic substances into simple inorganic substances that enrich the soil. They do not produce their own food or act as primary consumers.

Vegetable peels, Paper, Cotton cloth

Biodegradable substances are those that can be broken down by biological processes (bacteria and other microorganisms). Vegetable peels, paper, and cotton are natural materials that decompose easily. Plastic and glass are non-biodegradable.

Accumulation of harmful chemicals at each trophic level

Biological magnification is the progressive accumulation of non-degradable harmful chemicals like pesticides at each trophic level. Since these chemicals cannot be broken down, their concentration increases as we move up the food chain.