Energy
True or false:
Solar energy is the original source of energy in an ecosystem
True
Describe a "community"
two or more species living together in the same area
The birds feed off insects found among rocks and lichen on the ground.
This statement is inclusive of which spheres of the earth?
biosphere and lithosphere
Is nitrogen a direct or indirect pollutant?
Nitrogen is an indirect pollutant.
It does not usually kill fish directly but causes eutrophication, which lowers oxygen levels and harms aquatic life.
True or false:
Natural gas is a form of renewable energy
Falso
True or false:
A jaguar is an example of a decomposer
False
The stratosphere is responsible for....
absorption of ultraviolet radiation.
Explain why the use of chemical based fertilizers on agricultural land can impact the levels of phosphorus and nitrogen in nearby rivers.
Rainfall can wash fertilizers from farmland into rivers through runoff.
The fertilizers contain nitrogen and phosphorus, increasing nutrient levels in the water.
What is a negative impact from wind turbines
bird and bat deaths
What is an effective method for the biological rehabilitation of an open-cut mine after coal extraction has ended
Planting native vegetation to prevent erosion
Name the earth layers in order from most-inner to most-outer layer
inner core, outer core, mantle, crust
Describe eutrophication
When algae die, decomposition uses dissolved oxygen, lowering DO levels and causing fish deaths.
Describe carbon capture and storage
capturing greenhouse gas emissions from fossil fuel power stations and injecting the emissions deep into the ground
Define the term ’abiotic.’
Abiotic means non-living physical or chemical factors in an environment.
Which Earth sphere includes rocks and soil?
lithosphere
Biological indicators commonly monitored in rivers include these small aquatic organisms.
macroinvertebrates
Describe one method scientists have used to determine past CO2 levels.
Scientists use ice core samples.
Air bubbles trapped in the ice preserve ancient atmospheric gases, allowing measurement of past CO₂ concentrations.
Name the source from which the producers in the intertidal zone obtain their energy
The sun
What plate boundary can create both underwater and above-water volcanoes?
divergent plate boundaries