Explanation

• Solid wastes that are not easily decomposed by decomposers, such as bacteria, fungi, and other microorganisms, are called non-biodegradable wastes.
• These wastes are resistant to decomposition and can take hundreds or even thousands of years to break down.

Examples of non-biodegradable wastes include:

• Plastics
• Glass
• Metals
• Synthetic materials
• Chemicals
• Pesticides

Explanation

• Epigeal germination is the type of germination where the cotyledons (seed leaves) emerge above the ground.
• This occurs in plants like beans, peas, and cucumbers.

Explanation

Water from domestic use is not a typical cause of air pollution.

Air pollution is typically caused by the release of harmful substances into the atmosphere, such as:

• Burning of fuel (transportation, industrial processes)
• Burning of solid waste (incineration, landfills)
• Coal (mining, combustion)

Explanation

Air pollution is caused by the release of harmful substances into the atmosphere, which can come in the form of:

• Solids (particulate matter, such as dust, soot, and smoke)
• Liquids (aerosols, such as mist and fog)
• Gases (carbon monoxide, nitrogen oxides, sulfur dioxide, and volatile organic compounds)

Explanation

• The embryo is the miniature plant inside a seed, consisting of the radicle (root), hypocotyl (stem), and cotyledon (seed leaf).
• It contains the structures that develop into the root, stem, and leaves of the new plant.

Explanation

• Warm-blooded vertebrates, also known as endothermic vertebrates.
• Warm-blooded are animals that maintain a constant body temperature, regardless of the temperature of their surroundings.
• They are able to generate heat internally and regulate their body temperature, allowing them to maintain a relatively constant body temperature.
• Examples: birds and mammals.

Explanation

Vertebrates are divided into two main groups based on temperature regulation:

1. Cold-blooded (ectothermic) vertebrates, which include: Fish, Amphibians and Reptiles
2. Warm-blooded (endothermic) vertebrates, which include: Birds and Mammals (including humans)

Explanation

• Bacteria are unicellular organisms.
• They have cell wall but don't have proper nucleus.
• It doesn't contain chlorophyll.
• It is used to make medicines, yogurt and cheese.
• Algae are unicellular with proper cell wall and nucleus.
• It contain chlorophyll.
• It causes diseases: Cutleria, Ulva and Volvox.

Explanation

• Jupiter is a non-luminous object.
• Unlike burning coal, glassware and fireworks, which either emit or reflect light in ways that are noticeable.
• Jupiter does not generate its own light but reflects the light of the Sun.

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.