Explanation

• A Periscope uses two plane mirrors placed at a 45° angle to each other.
• It allowing the user to see objects that are not in their direct line of sight.
• This is commonly used in submarines, tanks, and other applications where visibility is limited.

Explanation

• Mixtures are physical combinations of two or more substances that are not chemically combined.
• The components of a mixture retain their chemical properties and can be separated by physical means.

Explanation

• Navigation satellites, such as GPS (Global Positioning System), GLONASS, and Galileo.
• They are used to provide location information and precision timing signals to GPS receivers on the ground.
• It allowing for precise navigation and tracking of vehicles, ships, and aircraft.

Explanation

• Carbon dioxide (gas) dissolves in water (liquid).
• It forming a gas-liquid solution.

Explanation

• If a human-made (artificial) body moves around a celestial body it is called an artificial satellite.
• Artificial satellites are objects placed into orbit around celestial bodies by humans for purposes such as communication, weather monitoring, and scientific research.

Explanation

• The fuel (gasoline or diesel) in a car is a form of chemical energy, which is stored in the bonds of the fuel molecules.
• When the fuel is burned in the engine, this chemical energy is converted into kinetic energy (the energy of motion) through a series of processes, including combustion, transmission, and propulsion.

Explanation

• The incorrect statement about suspension is: The suspension is transparent and clear

Suspensions are typically characterized by:

• Being heterogeneous mixtures
• Having dispersed solute particles
• Having varying color and appearance throughout
• Being translucent or opaque

Explanation

• The solution is a homogeneous mixture
• In a solution the particles of solute and solvent are mixed
• The colour and appearance are same in every part of the solution
• The solution is clear and transparent

Explanation

A compound is a pure substance that contains only one type of molecule made up of atoms of more than one element.

Examples of compounds:

• Water (H2O) - Compound of Hydrogen and Oxygen
• Common salt (NaCl) - Compound of Sodium and Chlorine
• Washing soda (Na2CO3) - Compound of Sodium, Carbon, and Oxygen
• Carbon dioxide (CO2) - Compound of Carbon and Oxygen
  
• Sugar (C6H12O6) - Compound of Carbon, Hydrogen, and Oxygen

Explanation

• Sugar and water is a classic example of a solution, where sugar (the solute) is dissolved in water (the solvent).
• The resulting mixture is a homogeneous solution, where the sugar molecules are evenly distributed throughout the water.