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WorksheetsHuman impact - Ecology basics
Total questions: 35
Worksheet time: 25mins
1. What would Earth be like without the greenhouse effect?
The same temperature
a little cooler than it is now
. Too cold to live
a little warmer than it is now
1. Which biome has the highest biodiversity and is the most threatened?
Temperate forests
grasslands
tropical rain forests
deserts
1. Why is firewood considered to be a renewable resource?
It can be replenished over time.
It is used up faster than it can form.
It is made from coal.
It can be made synthetically.
1. Which level of the food chain is most affected by biomagnifications?
Producers
primary consumers
secondary consumers
tertiary consumers
1. Why has Earth's human carrying capacity increased greatly?
Other organisms have been displaced by agriculture, so there is more space for humans.
Humans have modified their environment due to technological advances.
Humans can live closer together than other animals
Humans are now eating fewer plants than they used to.
The primary cause of invasive species introduction is
too much food
human actions
weather events
asteroids
The threat to biodiversity that occurs when the homes of different species are destroyed
pollution
habitat destruction
overexploitation
climate change
When human-made chemicals and garbage find their way into nature and harm the air, soil, and water it is called
pollution
habitat destruction
overexploitation
climate change
All of the carbon in existence is continually recycled in the carbon cycle.
Which compound does NOT contain carbon atoms?
carbon dioxide
ammonium
calcium carbonate
methane
Which of the following is an example of human impact on the carbon cycle?
The increased production of methane gases from cattle farms
The burning of fossil fuels
The cutting down of trees for lumber
Driving automobiles
All of the above
Where does all the carbon in organisms (living things) originate from?
Earth's atmosphere
Rocks
Water
Soil
Which of the following are some of the major carbon stores on Earth? You can choose multiple answers
The ocean
The lithosphere (upper part of Earth's crust)
The atmosphere
The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called _____________.
the Carbon Cycle
the Oxygen Cycle
the Carbon dioxide Cycle
the Water Cycle
Which of the following is true about the greenhouse effect? you can choose more than one
It is a natural process
It is caused by gasses trap heat from infrared radiation
It makes life on Earth possible
It is the cause of global warming
What would happen to the bird if the green fish died out?
the bird population would grow
the bird population would die out
the smaller fish will die out
Which organisms eat only producers?
Secondary Consumers
Apex Predators
Tertiary Consumers
Primary Consumers
