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Which of these organisms is a producer in a marine ecosystem?
the index fossils in the area of the bones
Algae
It suppies the body's needs for growth and energy.
Ecosystem damage and loss of land
producing energy using hydroelectric plants
biomass
The continents of Earth are continually moving.
Agriculture run-off
Which is a possible disadvantage of using flowing water to produce electricity?
the index fossils in the area of the bones
Algae
It suppies the body's needs for growth and energy.
Ecosystem damage and loss of land
producing energy using hydroelectric plants
biomass
The continents of Earth are continually moving.
Agriculture run-off
A scientist finds the bones of a dinosaur. What could help the scientist determine the approximate age of the dinosaur bones?
the index fossils in the area of the bones
Algae
It suppies the body's needs for growth and energy.
Ecosystem damage and loss of land
producing energy using hydroelectric plants
biomass
The continents of Earth are continually moving.
Agriculture run-off
What do earthquakes tell scientists about the history of the planet?
the index fossils in the area of the bones
Algae
It suppies the body's needs for growth and energy.
Ecosystem damage and loss of land
producing energy using hydroelectric plants
biomass
The continents of Earth are continually moving.
Agriculture run-off
Which is an example of a renewable energy source?
the index fossils in the area of the bones
Algae
It suppies the body's needs for growth and energy.
Ecosystem damage and loss of land
producing energy using hydroelectric plants
biomass
The continents of Earth are continually moving.
Agriculture run-off
From the answer choices below, which gives the best example of point-source pollution?
the index fossils in the area of the bones
Algae
It suppies the body's needs for growth and energy.
Ecosystem damage and loss of land
producing energy using hydroelectric plants
biomass
The continents of Earth are continually moving.
Agriculture run-off
Which would least likely have an impact on global climate changes?
the index fossils in the area of the bones
Algae
It suppies the body's needs for growth and energy.
Ecosystem damage and loss of land
producing energy using hydroelectric plants
biomass
The continents of Earth are continually moving.
Agriculture run-off
Why is a healthy diet important?
the index fossils in the area of the bones
Algae
It suppies the body's needs for growth and energy.
Ecosystem damage and loss of land
producing energy using hydroelectric plants
biomass
The continents of Earth are continually moving.
Agriculture run-off
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