CBSE Class 9 Earth As A System — practice questions
20 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 9 Earth As A System in the app →Rocks, soil and landforms make up the:Liquid water on the Earth forms the:Ice and snow make up the:All living organisms and their habitats form the:The main source of energy on the Earth is:Which radiation reaches the surface and drives photosynthesis?Solar radiation reaching the Earth's surface is called:The solar constant is about:The fraction of sunlight a surface reflects is its:Which surface has a high albedo?The atmosphere consists mainly of nitrogen and:Nitrogen makes up what share of the atmosphere?Which layer shields the Earth from harmful UV radiation?Gases that trap outgoing heat are called:Rising air at the equator forms a belt of:Sinking air near 30 degrees latitude forms:Planetary winds are deflected to the right in which hemisphere?Large circular patterns of ocean currents are called:The North Atlantic Drift is a current that carries:The cycling of carbon and nitrogen through living and non-living parts is a: