Explanation

• The number of spark plugs needed in a diesel engine is zero
• Diesel engines use compression ignition instead of a spark.
• Air is compressed until it is hot enough to ignite the fuel.
• Instead of spark plugs, they use glow plugs to warm the engine when cold

Explanation

• Amino acids are the building blocks of proteins.
• Proteins are formed when amino acids join together by peptide bonds.
• Proteins are essential for growth, repair, and body functions.
• There are 20 standard amino acids used to make proteins.

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Explanation

• Biodegradable waste is waste that microorganisms, such as bacteria and fungi, can break down naturally.
• Vegetable waste from farms, including leaves, stems, and spoiled vegetables, decomposes naturally.

Last verified on 16-10-2026

Explanation

• Apomixis: Seed formation without fertilization, meaning the fusion of male and female gametes does not occur.
• The offspring are often genetically identical to the parent plant because the seed develops without normal sexual reproduction.

Additional information:

• Parthenocarpy: Fruit development without fertilization; it commonly produces seedless fruits.
• Grafting: A vegetative propagation method in which parts of two plants are joined.
• Scion: The shoot or stem piece joined to the rootstock during grafting.

Last verified on 16-10-2026

Explanation

• Gymnosperms are plants whose seeds are not enclosed inside an ovary or fruit.
• The word gymnosperm means “naked seed.”
• Examples include pine, cycas, and fir.
• Their seeds are often borne on the scales of cones.

Last verified on 16-10-2026