The Wonderful World Of Composting

What is composting? 

• The process of burning organic waste  

• The process of breaking down organic matter into nutrient-rich soil

• The process of freezing organic waste

• The process of chemically treating organic waste 

Answer explanation

Composting is the process of breaking down organic matter, such as food scraps and yard waste, into nutrient-rich soil. This method enriches soil and reduces waste, making it the correct choice.

Which of the following materials can be composted?

• Aluminum cans

• Plastic bottles

• Glass jars

• Banana peels

Answer explanation

Banana peels are organic waste and can decompose, making them suitable for composting. In contrast, aluminum cans, plastic bottles, and glass jars are non-biodegradable materials and cannot be composted.

Why is composting beneficial for the environment?

• It makes soil infertile

• It releases harmful gases

• It reduces the need for chemical fertilizers

• It increases landfill waste

Answer explanation

Composting enriches soil and reduces the need for chemical fertilizers by providing essential nutrients naturally. This helps maintain soil fertility and promotes a healthier environment.

Which condition is essential for effective composting?

• Direct sunlight only

• Lack of air (anaerobic conditions)

• Presence of moisture and oxygen

• Extreme cold temperatures

Answer explanation

Effective composting requires the presence of moisture and oxygen, as these conditions promote the activity of microorganisms that break down organic matter. Without them, composting becomes inefficient.

Which of the following is NOT recommended to add to a compost pile?

• Meat scraps

• Eggshells

• Grass clippings

• Fruit peels

Answer explanation

Meat scraps are NOT recommended for compost piles as they can attract pests and create odors. In contrast, eggshells, grass clippings, and fruit peels are beneficial for composting.

What is the main purpose of turning or mixing compost regularly?

• To make it smell stronger

• To keep pests away

• To dry out the compost

• To provide oxygen for decomposition

Answer explanation

Turning or mixing compost regularly provides oxygen, which is essential for the decomposition process. This helps microorganisms break down organic matter efficiently, leading to better compost quality.

Which microorganism plays a key role in the composting process?

• Bacteria

• Beetles

• Earthworms

• Ants

Answer explanation

Bacteria are the primary decomposers in the composting process, breaking down organic matter into simpler substances. They play a crucial role in recycling nutrients, making them essential for effective composting.