Consider the following statements regarding "wind": 1. It refers to the static layer of air near the ground. 2. It helps in the water cycle. 3. It aids in the dispersal of seeds and pollen. Which of the statements given above is/are correct?

The correct option is (c). Explanation Wind is a significant abiotic factor in the environment, defined physically as the movement of air relative to the Earth's surface. It plays a critical role in both climatic and biological processes. - Statement 1 is Incorrect: Wind refers to moving air caused by differences in atmospheric pressure. It is not a static layer; rather, it represents the horizontal movement of air from high-pressure areas to low-pressure areas. - Statement 2 is Correct: Wind is an essential component of the hydrological cycle (water cycle). It transports water vapor evaporated from water bodies to land masses, where it condenses to form clouds and precipitation. It also influences the rate of evaporation. - Statement 3 is Correct: Wind acts as a mechanical carrier in ecosystems. It facilitates anemophily (pollination by wind) and aids in the dispersal of seeds and fruits (anemochory), thereby helping in the propagation of plant species. Key Takeaway: Wind is the horizontal movement of air that functions as a vital abiotic factor, driving the water cycle and assisting in biological propagation through pollen and seed dispersal.

NCERT Class 6 Environment & Ecology — Chapter 2: Air around us

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Consider the following statements regarding "wind":

It refers to the static layer of air near the ground.
It helps in the water cycle.
It aids in the dispersal of seeds and pollen.

Which of the statements given above is/are correct?

Official previous-year question

Verified 1 Aug 2026.

Options

A1 and 2 only
B2 only
C2 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (c).

Explanation

Wind is a significant abiotic factor in the environment, defined physically as the movement of air relative to the Earth's surface. It plays a critical role in both climatic and biological processes.

Statement 1 is Incorrect: Wind refers to moving air caused by differences in atmospheric pressure. It is not a static layer; rather, it represents the horizontal movement of air from high-pressure areas to low-pressure areas.
Statement 2 is Correct: Wind is an essential component of the hydrological cycle (water cycle). It transports water vapor evaporated from water bodies to land masses, where it condenses to form clouds and precipitation. It also influences the rate of evaporation.
Statement 3 is Correct: Wind acts as a mechanical carrier in ecosystems. It facilitates anemophily (pollination by wind) and aids in the dispersal of seeds and fruits (anemochory), thereby helping in the propagation of plant species.

Key Takeaway: Wind is the horizontal movement of air that functions as a vital abiotic factor, driving the water cycle and assisting in biological propagation through pollen and seed dispersal.

Your note

More from Chapter 2: Air around us

Consider the following statements regarding the atmosphere: 1. It is a thin layer of air that surrounds the earth. 2. It extends only up to 10 km above the surface of the earth. 3. The air becomes denser as we move higher in the atmosphere. Which of the statements given above is/are correct?

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With reference to the composition of air, consider the following statements: 1. Nitrogen and oxygen together make up approximately 99% of the air. 2. Carbon dioxide constitutes the majority of the remaining 1% of air. 3. The composition of air varies from place to place. Which of the statements given above is/are correct?

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Consider the following statements regarding water vapour in the air: 1. Air contains water vapour only during the rainy season. 2. When air comes in contact with a cool surface, water vapour condenses. 3. The presence of water vapour in air is essential for the water cycle in nature. Which of the statements given above is/are correct?

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With reference to the burning of fuel and its by-products, consider the following statements: 1. Burning can occur in the absence of oxygen if nitrogen is present. 2. Burning of fuel produces smoke which contains a few gases and fine dust particles. 3. Smoke produced by burning fuel is generally beneficial to respiratory health. Which of the statements given above is/are correct?

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Consider the following statements regarding the "dust particles" in the air: 1. Dust particles are always present in the air. 2. The presence of dust particles in air is constant irrespective of time and place. 3. Breathing through the mouth can allow harmful dust particles to enter the body. Which of the statements given above is/are correct?

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The correct option is (c).

Explanation

Statement 1 is Incorrect: Wind refers to moving air caused by differences in atmospheric pressure. It is not a static layer; rather, it represents the horizontal movement of air from high-pressure areas to low-pressure areas.
Statement 2 is Correct: Wind is an essential component of the hydrological cycle (water cycle). It transports water vapor evaporated from water bodies to land masses, where it condenses to form clouds and precipitation. It also influences the rate of evaporation.
Statement 3 is Correct: Wind acts as a mechanical carrier in ecosystems. It facilitates anemophily (pollination by wind) and aids in the dispersal of seeds and fruits (anemochory), thereby helping in the propagation of plant species.

Key Takeaway: Wind is the horizontal movement of air that functions as a vital abiotic factor, driving the water cycle and assisting in biological propagation through pollen and seed dispersal.