WorksheetsKCC Global Systems Revision 2023
Total questions: 23
Worksheet time: 12mins
Identify the correct matches between an Earth system and its main type of contents.
Atmosphere – air
Biosphere – soils and sediments
Hydrosphere – water and ice
Geosphere – oceans
Select the Earth system in which the rock cycle operates primarily.
Biosphere
Hydrosphere
Atmosphere
Geosphere
Rain falls on a mountainside, seeps into the bedrock and is absorbed by the roots of a pine tree.
Apart from the hydrosphere, identify the Earth systems that water passes through.
atmosphere → geosphere → biosphere
atmosphere → biosphere → geosphere
geosphere → biosphere → atmosphere
biosphere → geosphere → atmosphere
Identify whether the following statement is true or false.
Carbon compounds are found in all living cells and are transferred between living things by food chains.
Determine which of the following statements about greenhouse gases are correct.
Which of the following are considered greenhouse gases?
carbon dioxide, methane, nitrous oxide, water vapour
oxygen, nitrogen, argon, helium
Identify the human activity that is our biggest source of carbon dioxide.
Raising cattle
Burning fossil fuels
Mining
Cement production
Identify which of the following statements about carbon dioxide and the oceans are true.
Ocean waters are a carbon sink
The oceans have increased the amount of carbon dioxide they contain since pre-industrial times
High carbon dioxide concentrations in sea water cause coral bleaching
Carbon dioxide moves by diffusion from the atmosphere into the ocean, but not from the ocean into the atmosphere
Which process is responsible for the majority of oxygen production on Earth?
Photosynthesis in plants
Chemical reactions in the atmosphere
Ocean evaporation
Volcanic eruptions
What is the primary cause of the greenhouse effect on Earth?
Deforestation
Increased solar radiation
Greenhouse gases trapping heat in the atmosphere
Ozone depletion
The process used by plants to convert energy from the Sun into chemical energy is:
diffusion
respiration
photosynthesis
transpiration
Which of the following is not a layer in the Earth’s atmosphere?
Mesosphere
Ionosphere
Ozosphere
Troposphere
The two most abundant gases in the Earth’s atmosphere are:
The main difference between the greenhouse effect and enhanced greenhouse effect is:
a decrease in greenhouse gases.
the depletion of the ozone layer.
an increase in carbon dioxide gas only.
an increase in all greenhouse gases.
The role of the ozone layer is to:
trap greenhouse gases.
trap UV radiation reradiated back into the atmosphere from the surface.
block out 95% of the UV rays entering the atmosphere.
react with CFCs to create more ozone.
Apart from carbon dioxide, identify another carbon compound that is a significant greenhouse gas.
What is the primary role of the Earth's atmosphere?
Protecting the Earth from meteor impacts
Providing oxygen for life
Regulating the Earth's temperature
Creating weather patterns
Which of the following is not a result of increased levels of greenhouse gases in the Earth's atmosphere?
Increased global temperatures
Increased sea levels
Increased ozone layer
Increased extreme weather events
Which of the following human activities contributes the least to greenhouse gas emissions?
Deforestation
Industrial processes
Agriculture
Waste treatment
Which of the following is not a component of the Earth's geosphere?
Continental crust
Oceanic crust
Mantle
Ozone layer
What is the primary role of the Earth's hydrosphere in the carbon cycle?
It stores the majority of the Earth's carbon
It releases carbon dioxide into the atmosphere through evaporation
It absorbs carbon dioxide from the atmosphere
It has no role in the carbon cycle
Which of the following is not a result of the greenhouse effect?
Increased global temperatures
Increased sea levels
Increased biodiversity
Increased extreme weather events
Which of the following human activities contributes the most to greenhouse gas emissions?
Deforestation
Industrial processes
Agriculture
Burning of fossil fuels
