Explanation

• LPG (Liquefied Petroleum Gas)
• Mainly consists of hydrocarbons like propane and butane.
• These are gases composed of hydrogen and carbon atoms.
• It is used as fuel for cooking and heating.

Last updated 08 Nov 2026 by NA

Explanation

Air always moves from regions of high pressure to low pressure.

This movement creates wind and drives weather patterns.

The greater the pressure difference, the stronger the wind.

High-pressure areas are usually associated with clear skies.

Low-pressure areas often bring clouds and precipitation.

Explanation

A comet moves fastest when it is closest to the Sun, called perihelion.

The Sun’s gravity pulls the comet strongly, increasing its speed.

At aphelion (farthest point from the Sun), its speed is much slower.

This follows Kepler’s laws of planetary motion.

The increase in speed also causes the comet’s tail to become more visible.

Explanation

The Sun produces energy through nuclear fusion in its core.

In fusion, hydrogen nuclei combine to form helium, releasing huge energy.

This energy radiates as sunlight, heat, and solar radiation.

Fusion is different from fission, which splits heavy nuclei.

Solar energy powers life on Earth and can be harnessed for electricity.

Explanation

The Shandur Polo Festival is usually held every year from July 7 to July 9. 

It is a sports festival heldat the Shandur Polo Ground in Pakistan

Located at the boundary of the Gupis-Yasin and Chitral Districts.

Played between the teams of Gilgit Baltistan and Chitral, 

Established 1930

Founder: Colonel Evelyn Hey Cobb

Explanation

• Vine is a non-woody climbing plant that relies on support from other structures or plants.
• Helps the plant reach sunlight without developing a strong stem.

Additional information:

• Common in gardens, fields, and wild areas.
• Examples include grape, cucumber, pumpkin.

Last verified on 25-01-2026

Explanation

Given:

$$X : Y = 3 : 4 quad text{and} quad Y : Z = 5 : 8$$

Step 1: Make Y common

• From $X:Y=3:4$, let$X=3k$, $Y = 4k$

• From $Y:Z = 5:8$, let $Y = 5m$, $Z=8m$

Step 2: Equate Y

$$4k = 5m implies k = frac{5}{4} m$$

Then:

$$X = 3k = 3 cdot frac{5}{4} m = frac{15}{4} m$$ $$Y = 4k = 5m$$$$Z = 8m$$

Step 3: Compute the expression

$$frac{2Y}{3X - Y + 2Z} = frac{2 cdot 5m}{3 cdot frac{15}{4} m - 5m + 2 cdot 8 m}$$3X−Y+2Z​=2⋅5m/ 3⋅15​/4m−5m+2⋅8m​

Numerator: $2\cdot 5m=10m$

Denominator:

3⋅15/4​m=45​/4m
45/4​m−5m+16m=45/4​m−20​/4m+64/4​m=89/4​m$$frac{2Y}{3X - Y + 2Z} = frac{10 m}{frac{89}{4} m} = frac{10 cdot 4}{89} = frac{40}{89}$$3X−Y+2Z​=10m​/89/4=10⋅4/89​=40/89​

Explanation

Submandible refers to the area under the lower jaw (mandible).

It is close to the ear region.

It contains submandibular glands, which are salivary glands.

Explanation

• Nitrobacter bacteria convert nitrite (NO₂⁻) into nitrate (NO₃⁻) in the soil.
• This is the second step of the nitrification process, which is important for plant nutrition.
• Nitrite is toxic to plants, but nitrate is easily absorbed as a nutrient.

Last verified on 22-01-2026

Explanation

• Mixed cropping is the practice of growing multiple crops together on the same field at the same time.
• There is no distinct row pattern; crops are intermixed randomly.

Additional information:

• Mixed cropping reduces economic risk if one crop fails.
• Encourages biodiversity and soil protection.

Last verified on 25-01-2026