Human Impact on Water
Groundwater can only become polluted from sources that are already underground. True/False
False
taking out too many fish in an area
Overfishing
The process plants use to create food from the energy of the Sun.
Photosynthesis
The living components of an ecosystem.
biotic
Trophic level of meat eaters when they feed on other meat eaters
Tertiary consumers
Humans depend on ___________ for drinking, cooking, and washing. The irrigation of crops also requires freshwater.
water
Water found beneath Earth's surface such as soil or aquifers
An organism that creates food energy from carbon dioxide and water in the presence of sunlight?
Producer
The nonliving components of an ecosystem.
abiotic factor
Trophic level of herbivores because they only eat the producers.
Water-pollution sources that originate from a single point of origin are called:
point source pollution
Water found on Earth's surface including rivers, lakes, and oceans
Surface water
At each trophic level, the amount of energy transferred to new biomass through growth and reproduction is only about ___% of what the organism eats.
10%
Which cycle explains the movement of nitrogen through soil, plants, and animals?
nitrogen cycle
Meat eaters who feed on primary consumers.
Secondary consumers
97% of Earth's Waters is found here
Oceans
An area of land where water flows over and drains into a stream, river, or ocean
watershed
Organisms that eat other organisms
Consumers
Much of the energy available in the food made by a producer or eaten by a consumer is used to maintain life functions. Therefore, it is lost as _____.
heat
A diagram that shows the flow of energy through an ecosystem.
food web
What is the difference between point source and non-point source pollution?
Point pollution comes from one specific site Nonpoint source pollution comes from many small sources
fertilizers or pesticides that take out the oxygen in the water
dead zone
Organisms that create their own food are called producers. They have another name that literally means "self-feeder
autotroph
The total organic matter in an ecosystem is created by the producers. The name literally means "living matter" bio________.
biomass
Describe which trophic level of the energy pyramid gets the LEAST amount of energy?
apex