Mass is the amount of matter in an object, measured in kilograms or grams. Volume is the space occupied by that matter, measured in liters or cubic meters. Both properties are fundamental to understanding materials.
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Matter is anything that has mass and occupies space. It includes all physical substances, whether solid, liquid, or gas. Matter can exist in various forms and is made up of atoms and molecules.
The classification of non-living things is based on their properties, such as state (solid, liquid, gas), composition (elements, compounds), and characteristics (hardness, transparency). This helps in understanding their behavior and uses in various applications.
Wood and iron excel in hardness, ensuring stability. Plastic and bamboo are lightweight, making them easy to move. Wood feels warmer in winter, while plastic is easy to clean and maintain over time.
Stagnant water provides ideal breeding grounds for mosquitoes, which lay eggs and develop into larvae and pupae in such environments. Preventing water stagnation helps reduce mosquito populations and lowers the risk of mosquito-borne diseases like malaria and dengue fever.
Larvae are typically elongated, worm-like, and have a segmented body with a siphon tube for breathing. Pupae are generally more compact, cocoon-like, and have a rounded shape. Pupae do not have legs or a distinct head like larvae.
To prevent mosquito breeding, eliminate stagnant water sources, use larvicides in standing water, and keep water containers covered. Maintain clean surroundings and use insect repellents. Educate the community about these measures to effectively control mosquito populations and reduce disease risk.
The mosquito life cycle can be disrupted by eliminating stagnant water, treating it with larvicides like kerosene, and using insect repellents. Additionally, introducing natural predators such as fish can help reduce mosquito larvae and break their developmental stages.
Mosquito larvae and pupae come to the water surface to breathe. Larvae have a siphon tube to extract oxygen from the air, while pupae need to reach the surface to allow adult mosquitoes to emerge and fly away.
Your mother sprays kerosene oil on stagnant water to prevent mosquito breeding. Kerosene creates a thin film on the water surface, which interferes with mosquito larvae breathing, thereby reducing their chances of growing into adult mosquitoes and spreading diseases.