Explanation

Glucose synthesis occurs during photosynthesis, which primarily happens in the leaves.

Leaves contain chlorophyll that captures sunlight energy needed for this process.

Explanation

Bacteria (e.g., Streptomyces) and Fungi (e.g., Penicillium) are commonly used to produce antibiotics.

These microorganisms naturally produce substances that kill or inhibit other microbes.

Explanation

Fe = 56, N = 14 × 2 = 28, O = 16 × 6 = 96 → Total = 56 + 28 + 96 = 180 amu

This is the correct formula mass for Iron (II) Nitrate, Fe(NO₃)₂.

Explanation

اسم معرفہ وہ اسم ہوتا ہے جو کسی خاص چیز، جگہ یا فرد کی نشاندہی کرے۔

چنبیلی ایک خاص پھول کا نام ہے، اس لیے یہ اسم معرفہ ہے۔

Explanation

Gold can be beaten into extremely thin sheets (just a few atoms thick), ideal for alpha particle passage.

This thinness allowed alpha particles to pass through with minimal obstruction, helping observe atomic structure.

Explanation

The sentence uses "by next year" — a future time marker, so Future Perfect Tense is correct.

"Will have learned" fits the structure: Subject + will have + past participle.

Explanation

Complete combustion of hydrocarbons (like methane, propane, etc.) in the presence of oxygen produces:

• Carbon dioxide (CO₂)
• Water (H₂O)

Therefore, the combustion products of hydrocarbons are carbon dioxide and water.

Explanation

Tar is the major component of particulate matter inhaled in cigarette smoke.

It contains several carcinogens.

It is responsible for lung damage.

Explanation

Hibiscus rosa-sinensis (China rose) is a flowering plant of the Malvaceae family.

This family is known for its characteristic funnel-shaped flowers and mucilaginous properties.

Explanation

Activation energy is the minimum energy needed to start a chemical reaction by breaking bonds in reactants.

It determines reaction rates (lower = faster).