Examples of non-lustrous materials include paper, wood, rubber, and jute, which do not have shiny surfaces. NCERT Science Textbook Curiosity Science Session 2024-2025.
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Cell phones use GPS (Global Positioning System) for navigation without a needle and compass. GPS satellites transmit signals to the phone, which calculates its location based on the time it takes for the signals to arrive. Additionally, cell phones use ...
A large scale map depicts a small geographic area with detailed information. For example, 1 cm on the map might represent 1 km on the ground. These maps are useful for showing specific features like streets, buildings, and landmarks, making ...
A small scale map shows a large geographic area with limited detail. For example, 1 cm on the map might represent 100 km on the ground. These maps are useful for understanding broad spatial relationships and large regions, such as ...
A compass is used for navigation and orientation by determining direction relative to the Earth’s magnetic poles. It features a magnetic needle that aligns with the Earth’s magnetic field, pointing towards magnetic north. This helps users find their way, plan ...
Cardinal points on a map are the four main directions: North, South, East, and West. They are used to indicate orientation and help users determine direction and location. These points form the basic framework for navigation and are essential for ...
The balance of oxygen and carbon dioxide in the atmosphere is maintained through processes like photosynthesis and respiration. Plants and algae absorb carbon dioxide and release oxygen during photosynthesis, while animals and humans consume oxygen and release carbon dioxide through ...
Areas experience high or low air pressure due to temperature differences and the Earth’s rotation. High pressure occurs where air cools and sinks, creating a dense, heavy layer. Low pressure forms where air warms and rises, creating a lighter, less ...
The Arctic refers to the polar region at the Earth’s northernmost part, including the Arctic Ocean and surrounding lands. It is characterized by ice-covered waters and polar tundra. The Antarctic is the polar region at the southernmost part of the ...