Feature Earth Venus Mars Composition 78% Nitrogen (Nâ‚‚), 21% Oxygen (Oâ‚‚), 1% other gases (COâ‚‚,...
Question Category: Natural resources
How does the atmosphere act as a blanket?
The atmosphere acts as a blanket by performing the following functions: It keeps the average...
What causes winds?
Winds are caused by differences in air pressure due to unequal heating of the Earth’s...
How are clouds formed?
Clouds are formed through the process of condensation in the atmosphere. The steps involved are:...
List any three human activities that you think would lead
The following three human activities would lead to air pollution: (i) Burning of fossil fuels...
Why do organisms need water?
Water is essential for the survival of all living organisms because it plays a crucial...
What is the major source of fresh water in the
The major source of fresh water in a city, town, or village depends on the...
Do you know of any activity which may be polluting
Activities That Pollute Water Sources Yes, several human activities contribute to water pollution, affecting rivers,...
How is soil formed?
Soil formation is a slow and continuous process that occurs over thousands to millions of...
What is soil erosion?
Soil erosion is the process of removal and displacement of the topsoil by natural forces...