Which of the following is not typically considered a weather element?

Correct — C. NCERT's Class VII chapter on air defines weather as the hour-to-hour, day-to-day condition of the atmosphere, and takes up temperature, air pressure, wind, humidity and precipitation.

Soil pH measures how acidic or alkaline the soil is. It describes the ground, not the air, so it is not a weather element: option (c).

Why the others are wrong

• (a)
  Temperature — Temperature, the degree of hotness and coldness of the air, is the first weather element NCERT's Class VII chapter on air takes up.
• (b)
  Humidity — Humidity, the moisture in the air at any time, is a weather element. NCERT treats it with precipitation under moisture.
• (d)
  Wind — Wind, the movement of air from high-pressure areas to low-pressure areas, is a weather element, recorded by its direction and speed.

Weather is the day-to-day condition of the atmosphere at a place, and climate is the average weather of a place over a long period.

Both are described through the same elements: temperature, air pressure, wind, humidity and precipitation. Each is a property of the air, read with instruments such as the thermometer, the rain gauge and the wind vane.

Key facts

• Weather is the hour-to-hour, day-to-day condition of the atmosphere.
• The average weather of a place over a long period is its climate.
• Humidity is the moisture in the air at any time.
• Soil pH measures the acidity or alkalinity of soil, on a scale on which 7 is neutral.

Common traps

• Doubting humidity because it sounds technical, when it is a core weather element.
• Treating anything a farmer watches alongside the weather as a weather element.

No directly related past PYQ was found.