In biology the term extinct is used for species which are no longer alive. so here Ava is correct because a species has died out and is not longer alive.
Endangered species are those which are on the urge of being extinct, means they are in danger so the term "endangered"
Ava can also elaborate the terms by taking examples
Dinosaurs are extinct species. They are no longer alive or not found in any part of world. So they are called as extinct.
The term can be used for animal or plant species.
Answer:
when an entire species of animal dies and it is no longer present on the earth it is call extinct
c. sandstone in the zone of saturation
Explanation:
The best aquifer of all is a sandstone in the zone of saturation. An aquifer is a porous and permeable formation where groundwater can accumulate.
- To be a good aquifer, a rock or soil must be porous and permeable.
- Porosity is the amount of void spaces present in a rock.
- Permeability is the inter-connectivity of the pore spaces.
The zone of saturation is the zone below the water table where water is always present underground.
- Sandstones have high porosity and permeability.
- They are good aquifers when found at the zone of saturation.
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Sedimentary rocks brainly.com/question/9131992
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Answer:
A redox reaction is spontaneous if the standard electrode potential for the redox reaction, Eo(redox reaction), is positive. ...
If Eo(redox reaction) is positive, the reaction will proceed in the forward direction (spontaneous)
Explanation:
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Answer:
Cardiac muscle is controlled involuntary, whereas skeletal muscle is voluntary.
Explanation:
