Explanation

• Plants can respond to various stimuli like light, gravity, and touch.
• The response of plants to touch is called thigmotropism.
• It is commonly seen in climbing plants and vines, which coil around supports.

Last verified on 23-01-2026

Explanation

Explanation

Photoelectric effect occurs when photons have energy E = hv greater than the work function of the material.

Ultraviolet light has a higher frequency (shorter wavelength) than visible light, so its photons carry more energy, making the effect more likely.

Explanation

Explanation

Osmosis is the movement of water molecules through a semipermeable membrane from an area of higher water concentration to lower concentration.

It is a vital process in biological systems for maintaining cell balance.

Explanation

Given:

Volume of compound C at STP = 0.112 dm³

1 mole gas at STP = 22.4 dm³

So, moles of C = 0.112 ÷ 22.4 = 0.005 mol

CO₂ produced:

Mass = 0.88 g

Moles of CO₂ = 0.88 ÷ 44 = 0.02 mol

Mole ratio:

0.005 mol of C → produced 0.02 mol of CO₂

Ratio CO₂ : C = 0.02 ÷ 0.005 = 4

👉 That means 4 carbon atoms are present in one molecule of C.

Explanation

WISP means چھوٹا جھنڈا

Tuft means چھوٹا جھنڈا

Explanation

SCOPE means دائرہ کار

Scrutinize means جانچ پڑتال کریں

Explanation

Explanation

The parallel structure requires: “both to ride to school and to go to market.”

So “going to” is incorrect; it should be “to go to.”