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Why is a healthy diet important?
the index fossils in the area of the bones
to supply the body’s needs for growth and energy
algae
more aquatic life
Use radioactive dating to find absolute age
an overproduction of algae decreases dissolved oxygen, causing fish to die
they contain evidence showing changes in the atmospheric composition over time
temp pH
What is an example of a producer in a marine ecosystem?
the index fossils in the area of the bones
to supply the body’s needs for growth and energy
algae
more aquatic life
Use radioactive dating to find absolute age
an overproduction of algae decreases dissolved oxygen, causing fish to die
they contain evidence showing changes in the atmospheric composition over time
temp pH
Which best determines the health of a lake used as a source of freshwater?
the index fossils in the area of the bones
to supply the body’s needs for growth and energy
algae
more aquatic life
Use radioactive dating to find absolute age
an overproduction of algae decreases dissolved oxygen, causing fish to die
they contain evidence showing changes in the atmospheric composition over time
temp pH
Which will most likely result if there is increased upwelling in a coastal area?
the index fossils in the area of the bones
to supply the body’s needs for growth and energy
algae
more aquatic life
Use radioactive dating to find absolute age
an overproduction of algae decreases dissolved oxygen, causing fish to die
they contain evidence showing changes in the atmospheric composition over time
temp pH
A scientist finds the bones of a dinosaur. What could help the scientist determine the approximate age of the bones?
the index fossils in the area of the bones
to supply the body’s needs for growth and energy
algae
more aquatic life
Use radioactive dating to find absolute age
an overproduction of algae decreases dissolved oxygen, causing fish to die
they contain evidence showing changes in the atmospheric composition over time
temp pH
What will happen in a lake as a result of increased nitrate levels?
the index fossils in the area of the bones
to supply the body’s needs for growth and energy
algae
more aquatic life
Use radioactive dating to find absolute age
an overproduction of algae decreases dissolved oxygen, causing fish to die
they contain evidence showing changes in the atmospheric composition over time
temp pH
Which is the best method of determining the age of a dinosaur bone?
the index fossils in the area of the bones
to supply the body’s needs for growth and energy
algae
more aquatic life
Use radioactive dating to find absolute age
an overproduction of algae decreases dissolved oxygen, causing fish to die
they contain evidence showing changes in the atmospheric composition over time
temp pH
Which best describes how ice cores are important to the study of geologic history?
the index fossils in the area of the bones
to supply the body’s needs for growth and energy
algae
more aquatic life
Use radioactive dating to find absolute age
an overproduction of algae decreases dissolved oxygen, causing fish to die
they contain evidence showing changes in the atmospheric composition over time
temp pH
Check it!