Science 9 General Review! Question Preview (ID: 47381)
Review On All 5 Units In Science 9.
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What is an acid?
a) A chemical that has a pH value of lower then 7.
b) A chemical that has a pH value of 7.
c) A chemical that has a pH value of greater than 7.
d)
What is acute toxicity?
a) The ability of a chemical to cause harm over long term exposure.
b) The ability of a chemical to cause harm in one exposure.
c)
d)
What is altitude?
a) The angle measured in a clockwise direction from North.
b) The angle measured in a counter clockwise direction from North.
c) The angle measured above the horizon in degrees.
d)
What is an aquifer?
a) An underwater reserve of water.
b) Another name for a lake.
c) Another name for a river.
d)
What is asexual reproduction?
a) The formation of a new individual from two organisms.
b) The formation of a new individual from one organism.
c)
d)
What is azimuth?
a) The angle measured in a counter clockwise direction from North.
b) The angle measured above the horizon in degrees.
c) The angle measured in a clockwise direction from North.
d)
What is a base?
a) A chemical that has a pH value of lower then 7.
b) A chemical that has a pH value of 7.
c) A chemical that has a pH value of greater than 7.
d)
What is a bio indicator species?
a) A species that helps to fix environmental change.
b) A species that helps to indicate environmental change.
c) A species that does not help fix environmental change.
d)
What is biomagnification?
a) Process where chemicals accumulate in tissues going up a food chain.
b) Process where chemicals are biodegraded in tissues going up a food chain.
c) Process where chemicals remain constant in tissues going up a food chain.
d) None of the above.
What is a chemical change?
a) When two chemicals are combined together.
b) When a there is a change in which one or more new chemical substances are formed.
c) When you do a chemistry lab.
d)
What is commenalism?
a) When two organisms benefit from a symbiotic relationship
b) When one organism is harmed and one organism benefits from a symbiotic relationship.
c) When one organism benefits and one organism is not harmed from a symbiotic relationship.
d)
What are conductors?
a) Materials that do not allow charges to move freely.
b) Materials that do allow charges to move freely.
c)
d)
What is a discrete variation?
a) A variation that has a continual spectrum of expression. Ex - Height
b) A variation that only has specific versions of each allele. Ex - Tongue rolling
c) A variation that has only two versions.
d)
What is a dominant trait?
a) All traits are dominant traits.
b) A trait that is not always expressed if the individual has the allele.
c) A trait that is expressed if the individual has the allele.
d)
What is the geocentric model?
a) A model of the universe that has the Sun at the center, with the planets orbiting around it.
b) A model of the universe that has the Earth's Moon at the center, with other planets orbiting around it.
c) A model of the universe that has Earth at the center, with other planets orbiting around it.
d)
What is an endothermic reaction?
a) A chemical reaction.
b) A chemical reaction that absorbs heat.
c) A chemical reaction that releases heat.
d)
What is extirpation?
a) The extinction of a species from a specific geographical area.
b) The extinction of a species.
c) The endangerment of a species in a geographical area.
d) The endangerment of all individuals of a population.
What is a geosynchonous orbit?
a) Orbit of satellites placed 36000 km above the ground.
b) Orbit of satellites placed 5000 km above the ground.
c) Orbit of satellites placed 250km above the ground.
d) Orbit of satellites placed 1000 km above the ground.
What is a herbicide?
a) A chemical used to control insects.
b) A chemical used to control pests.
c) A chemical used to control weeds.
d)
What types of elements make up an ionic compound?
a) Two non metals.
b) A metal and a non metal.
c)
d)
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