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.

Explanation

• The solvent is the substance that dissolves the solute, typically present in a larger amount than the solute.
• It can be a solid, liquid, or gas, and its molecules or atoms separate the solute molecules or atoms, allowing them to dissolve.
• Examples: water, alcohol, and acetone.

Explanation

• The solute is the component of a solution that is dissolved in the solvent.
• It can be a solid, liquid, or gas, and it is typically present in a smaller amount than the solvent.
• Examples: sugar, salt, and coffee.

Explanation

• Carbon dioxide (CO2) is a greenhouse gas that plays a significant role in the Earth's greenhouse effect.
• It traps heat radiated from the Earth's surface, maintaining the Earth's temperature and keeping it warm enough to support life.
• Other greenhouse gases include methane (CH4), water vapor (H2O), and nitrous oxide (N2O).

Explanation

• When oil is burnt, it undergoes combustion, a chemical reaction that releases energy in the form of heat and light.
• It produces carbon dioxide (CO2) and water (H2O) as byproducts.
• The energy released can be used to power vehicles, generate electricity, or provide warmth.

Explanation

• Tapeworms are a type of parasite that live inside the digestive system of their host organism (such as humans or animals) and feed on the nutrients absorbed by the host.
• They do not contribute to the host's survival or well-being, and can in fact harm the host by competing for nutrients and causing disease.

Explanation

• The gas found in the greatest amount in the universe is Hydrogen.
• Making up 74% of all baryonic matter in the universe.

The elements that make up the universe, ranked in order of their abundance:

• Hydrogen
• Helium
• Oxygen
• Carbon
• Neon
• Iron
• Nitrogen
• Silicon
• Magnesium
• Sulfur

Explanation

• The old name of Nitrogen is Azote.
• This name, derived from the Greek word "azotikos" meaning "no life".
• It was given because nitrogen gas does not support respiration, making it inert or "lifeless" in this context.

Explanation

• Ozone (O3) in the stratosphere absorbs ultraviolet radiation from the Sun.
• It preventing excessive heat from reaching the Earth's surface.

Explanation

The charges of Proton, Electron, Neutron respectively are:

• Proton: Positive charge (+1)
• Electron: Negative charge (-1)
• Neutron: Neutral charge (0)