SNC1D 1.1 Sustainability

The living parts of an ecosystem are known as:

• Abiotic

• Biotic

• Biology

• Fungus

Which component of an ecosystem is abiotic?

• bear

• grasshopper

• maple tree

• mushroom

• soil

Which feature is a biotic component of an ecosystem?

• bacteria

• nutrients

• rocks

• soil

• water

Which is an example of two organisims competing for the same resources?

• coyotes and river otters

• dandelions and grass

• mushrooms and trees

• river otters and crabs

• river otters and frogs

Which term describes the regions of Earth where living organisms exist?

• atmosphere

• biosphere

• lithosphere

• ecosphere

• hydrosphere

Which term describes the rocky, abiotic part of the Earth?

• atmosphere

• biosphere

• lithosphere

• hydrosphere

• ecosphere

Which term best describes a chemical that is essential to living things and is cycled through a system?

• biosphere

• biotic component

• nutrient

• ecosphere

• eutrophication

The diagram illustrates the water cycle. Through which process does water move into the atmosphere?

• condensation

• evapouration

• ground water flow

• precipitation

• run - off

In which cycle does the burning of fossil fuels move a material from the lithosphere into the atmosphere?

• carbon

• nitrogen

• oxygen

• phosphorus

• water

Which step of the nitrogen cycle occurs only in the aquatic ecosystem?

• cyanobacteria convert nitrogen into ammonium

• soil bacteria convert nitrogen into ammonium

• soil bacteria convert ammonium into nitrate

• ammonium enters the ecosystem when humans fertilize soil

• nitrates enter the ecosystem when humans fertilize soil