Which of the following statements is incorrect?
(a) All living things require air to breathe.
(b) We can feel air but we cannot see it.
(c) Moving air makes it possible to fly a kite.
(d) Air is present everywhere but not in soil.
Correct Answer: (d) Air is present everywhere but not in soil.
Explanation: Air is omnipresent in nature, hence, it is present everywhere including the soil. This can be proved by a simple activity:
- Take a lump of dry soil is taken in a beaker or a glass.
- Add water to it.
Observation: When water is added to the soil, it displaces the air which is seen in the form of bubbles.
Hence proved that air is present in the soil.
Related Articles
- What is not true about air?(a) It makes the windmill rotate.(b) It helps in the movements of aeroplanes.(c) Birds can fly due to presence of air.(d) It has no role in water cycle.
- Which of the following is not a component of the abiotic environment?(A) Soil (B) Mountains (C) Plants (D) Air
- Which of the following is not a mixture?(a) kerosene (b) air(c) alcohol (d) petrol
- Consider the following statements and choose the correct one:(a) We know that air or atmosphere always contains some water vapour or moisture in it.(b) Humidity is a measure of water vapour or moisture in air.(c) When the amount of water vapour in the air is high, we say humidity is high and the air feels moist or damp.(d) All the above.
- If we boil water, will it become air?
- What makes a balloon get inflated when air is filled in it?
- Study the following statements about ozone:(a) It is essential for breathing of living organisms.(b) It is used to disinfect water.(c) It absorbs ultraviolet rays.(d) Its proportion in air is about 3%.Which of these statements are correct?(a), (b) and (c)(b) and (c)(a) and (d)All four
- Name the major gas present in the (a) inhaled air(b) exhaled air.
- Which of the following statements are “true”?(a) Water vapour is present in air only during the monsoon.(b) Water evaporates into air from oceans, rivers and lakes but not from the soil.(c) The process of water changing into its vapour is called evaporation.(d) The evaporation of water takes place only in sunlight.(e) Water vapour condenses to form tiny droplets of water in the upper layers of air where it is cooler.
- Which one of these is essential to perform Winnowing:A. Air B. Water C. Soil D. Rain
- (a) >What is air? Write the names of various constituents of air.(b) What is air pollution? What are the main sources of air pollution?
- Explain why, we can easily move our hand in air but to do the same through a plank of wood, we need a karate expert.
- When a gas jar containing colourless air is kept upside down over a gas jar full of brown-coloured bromine vapour, then after some time, the brown colour of bromine vapour spreads into the upper gas jar making both the gas jars appear brown in colour. Which of the following conclusion obtained from these observations is incorrect?(a) bromine vapour is made of tiny particles which are moving(b) air is made up of tiny particles which are moving(c) the particles of bromine are moving but those of air are not moving(d) even though bromine vapour is heavier that air, it can move up against gravity
- If Earth Attracts Everything To It But When I See In Sunlight The Dust Particles Are Flying In The Air. How?
- Explain: We can easily move our hand in the air but to do the same through a solid block of wood, we need a karate expert.
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies