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Which of the following comparisons are incorrect? A. Talc is softer than gypsum. B. Feldspar is harder than calcite. C. Quartz is softer than corundum. D. Apatite is harder than topaz
The answer is D. It is incorrect to state that apatite is harder than topaz. See Mohs' scale of hardness:
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Original conversation
User: Which of the following comparisons is incorrect?

User: Which of the following comparisons are incorrect? A. Talc is softer than gypsum. B. Feldspar is harder than calcite. C. Quartz is softer than corundum. D. Apatite is harder than topaz

Weegy: The answer is D. It is incorrect to state that apatite is harder than topaz. See Mohs' scale of hardness:
Janet17|Points 619|

User: How much of the world's plastic ends up on the ocean? A.1% B. 5% C. 10% D. 20%

Weegy: C.10% of the world's plastic ends up in the ocean
KUTTA|Points 0|

User: Most traditional sources of energy come from the? A. Biosphere B. Hydrosphere C. Lithosphere D.Atmosphere

Weegy: In general, chemicals enter ecosystem through: A. Atmosphere and hydrosphere. [ ]
thorz|Points 10|

User: What is the main obstacle to using wind power to generate electricity? A.it is expensive B. It is not suffcient to power the modern lifestyle C. it cannot be stored D. All the above

Weegy: What is the MAIn obstacle to using wind power to generate electricity? D.all of the above
aisonyu|Points 82|

User: What is residual waste? A. waste that can be composted B. waste that can be recycled C. waste that can be recycled, but not composted D. waste that cannot be composted or recycled

Weegy: Waht is residual waste?B.waste that can be recycled
Juansalsal|Points 90|

User: How much pollution control estimated to increase the cost of production in the united states? A less than 2% B. 5 to 10% C. 20% D. more than 25%

User: what type of biome supports about 70% of all living organisms? A. Grasslands B. Deserts C. forests D. oceans

Weegy: the answer is D.
khalilahmed88|Points 225|

User: Which of the following resources is natural, biotic and exhaustible? A. silk B.forests C. minerals D. water

Weegy: Forests is a resources that is natural, biotic and exhaustible.
Expert answered|shielatifah73|Points 40|

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Asked 4/12/2013 6:14:02 PM
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