Test: Nature’s Treasures - Class 6 MCQ

Nitrogen is the most abundant gas in Earth's atmosphere, making up about 78% of it. However, nitrogen is relatively inert and does not support combustion or respiration processes in living organisms. Oxygen (21%) is essential for respiration, while nitrogen's role is mainly to fill the atmosphere without reacting easily.

The Chipko Movement, started in the 1970s, involved people hugging trees to prevent them from being cut down.

The Sun is the primary source of energy for life on Earth. It provides light and warmth, which are essential for plants to make food through photosynthesis, and this supports the entire food chain.

Rainwater harvesting is the process of collecting and storing rainwater for future use, helping to conserve water resources and ensure a sustainable water supply.

Coal is considered a non-renewable resource because it forms over millions of years from the remains of ancient plants and animals. Once it is used, it cannot be replenished within a human timescale, making it a finite resource. In contrast, solar energy, freshwater, and wind energy are renewable resources.

Forests provide homes and shelter for a wide variety of wildlife, including animals, birds, and insects. They also help maintain ecological balance and support biodiversity, making it essential to conserve them.

Solar panels are primarily used to convert sunlight into electricity, providing a renewable and sustainable source of energy for various uses like powering homes and businesses.

Fossil fuels like coal, petroleum, and natural gas are formed from the remains of ancient plants and animals buried deep in the Earth.

Soil is made of various components such as sand, insects, worms, and microorganisms, which help in breaking down organic matter.

Gold is a mineral that is widely used in making jewelry and other decorative items due to its beauty and durability.