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WorksheetsCLIMATE CHANGE TEST (24-25)
Total questions: 19
Worksheet time: 18mins
The most common cause of mass extinction is...
Climate change
Volcanoes
Asteroids
Overhunting
65 million years ago, an asteroid struck southeast Mexico. The debris from this asteroid blocked out the sun for months.
The food web shows some species that lived in the United States when the asteroid struck. Which of the following members of the food web were most directly affected by the changes caused by the asteroid?
Cycad (a producer)
Triceratops
Tyrannosaurus
Troodon
Which of the species on the food web would have been the most affected if flowers had gone extinct?
Ground Ferns
Ankylosaurs
Triceratops
Lizards
Why is high biodiversity important for the survival of an ecosystem?
More competition makes it is easier for species to survive.
If one species goes extinct, there are still other food sources for the remaining species.
High biodiversity makes food webs more fragile.
High biodiversity encourages more species to be parasitic.
What process do producers use to make their food?
Hunting other species
Photosynthesis
Cellular respiration
Mitosis and meiosis
What is the energy source for photosynthesis?
Light
Heat
ATP
Electricity
Sort the following substances according to whether they are REACTANTS or products of photosynthesis.
Carbon dioxide
Water
Light
Glucose
Oxygen gas
The model shows the flow of air in a room. What does the YELLOW ARROW represent in the model?
Carbon dioxide (CO2)
Oxygen gas (O2)
Water vapor (H2O)
Glucose (C6H12O6)
How would increasing the number of producers in a room improve the air quality? (select ALL that apply)
There would be MORE oxygen in the air
There would be less carbon dioxide in the air
There would be less nitrogen gas in the air
There would be MORE carbon dioxide in the air
Cyanobacteria are the oldest known photosynthetic organisms. Why are cyanobacteria important for life today?
They filled the Earth's atmosphere with oxygen.
They produce lipids that we use for cooking.
They are important tertiary consumers in aquatic food webs.
They lower the amount of oxygen in the air.
The cattle in the field are (a) the CO2 in the air and (b) the O2 in the air through cellular respiration.
Where does the carbon in fossil fuels go when they are combusted?
Atmosphere
Biosphere
Geosphere
Hydrosphere
How would cutting down trees affect the carbon dioxide (CO2) in the atmosphere?
The CO2 in the atmosphere would INCREASE because there is less photosynthesis.
The CO2 in the atmosphere would decrease because there is less respiration.
The CO2 in the atmosphere would not change because plants cannot change the Earth's atmosphere.
The CO2 in the atmosphere would decrease because there is more combustion.
Label the model of the carbon cycle.
Fossil fuels
Atmospheric CO2
Photosynthesis
Respiration
Combustion
What is the main cause of current climate change?
Human activity
Solar activity
Volcanoes
Oceanic Diffusion
Human activity affects the climate by releasing (a) and other greenhouse gases into the atmosphere, which (b) the Earth's temperature.
People can reduce society's carbon footprint by...
...sharing car rides (carpooling)
...eating less beef.
...having fewer children.
...reducing our use of electricity.
All of the above
Which of the following human activities has the highest carbon footprint?
Electricity and Heating
Industry
Transportation
Construction
Over Earth's history, the climate has changed many times. Usually, this is due to abiotic factors such as volcanoes. However, living things can also cause climate change.
1 - Identify two living things that can change the Earth's climate.
2 - Describe how each group can affect the climate.
WORD BANK: atmosphere, biosphere, carbon dioxide, climate, cooling, cyanobacteria, decrease, global, humans, increase, oxygen, photosynthesis, producers, respiration, temperature, warming
