Explanation

An invertebrate is an animal without a backbone.

Worms, like earthworms, are classified as invertebrates.

They lack a backbone and are found in various environments. 

Explanation

• When the Moon and the Sun are on the same side of the Earth, we see a New Moon.
• This occurs when the Moon is between the Earth and the Sun, making the side of the Moon facing the Earth unilluminated.

Explanation

• The correct answer is: Particles have large empty spaces between them.
• This statement is incorrect because particles in liquids have small spaces between them, not large empty spaces.

Explanation

In a gas, the particles are:

• Widely spread out, with no fixed position or arrangement
• Not in a regular pattern, with no repeating structure or order
• Separated by large empty spaces, with no close packing or cohesion

Explanation

Matter changes state from:

• Solid to liquid (melting) when it gains energy
• Liquid to gas (vaporization) when it gains energy

This is because the particles need more energy to break free from their rigid structure in solids and move more freely in liquids, and even more energy to escape into the air as gases.

Explanation

• Condensation is the process by which water vapor (gas) changes to liquid water, releasing energy in the form of heat.
• This occurs when warm air, containing water vapor, comes into contact with a cool surface.
• It causing the water vapor to condense into droplets of water.

Explanation

Explanation

• The incorrect statement is: Particles are in loose clusters.
• In solids, particles are actually closely packed and arranged in a regular pattern, with minimal space between them.
• This is what gives solids their rigidity and structure.

Explanation

• Pollution is the introduction of harmful or poisonous substances into the environment, causing damage to the air, water, and land.
• This can have harmful effects on human health, wildlife, and the ecosystem as a whole.

Explanation

• Maize (Zea mays) is a monocotyledonous plant.
• It belonging to the family Poaceae (grass family).