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

• 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

• Translucent objects allow some light to pass through them.
• But also scatter or absorb some of the light, resulting in faint or diffuse shadows.

Explanation

• Asthma is a respiratory disease that can be triggered or exacerbated by exposure to air pollution.
• Air pollution can irritate the airways, trigger asthma attacks, and make symptoms worse.

Air pollution can cause:

• Respiratory problems: asthma, pneumonia, lung cancer
• Irritation: headaches, eyes and nose irritation, sore throat
• General symptoms: nausea, drowsiness, ill feeling
• Impaired judgment and weakened cognitive function

Explanation

• Escherichia coli (E. coli) is a type of bacterium.
• It is commonly found in the gut of humans and animals.
• It plays a important role in the digestive process. 

Explanation

• If an opaque object is moved further away from the light source, the shadow gets smaller.
• This is because the light source appears smaller from a distance, casting a smaller shadow.

Explanation

Solid wastes that are easily decomposed by decomposers, such as bacteria, fungi, and other microorganisms, are called biodegradable wastes.

Examples of biodegradable wastes include:

• Food waste
• Vegetable and fruit peels
• Paper and cardboard
• Human waste
• Animal waste

Explanation

• Transparent objects do not form shadows because they allow all light to pass through them.
• So there is no blocking of light to create a shadow.

Explanation

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

Explanation

• Aluminum is a non-ferrous metal.
• It is not capable of being magnetized or attracting magnets.