The current state of e-wastes is that ________
A) only because of the actions of charitable organizations, the recycling rate is 5%
B) although recycling has improved, the majority of e-wastes are still being landfilled and incinerated
C) the recycling rate has dropped significantly between 1999 and 2010
D) because the EPA has classified e-wastes as toxic, more than 95% are being recycled
E) by EPA mandate, all metals in electronics have been replaced by biodegradable materials
B
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Creep associated with animals and resembling a faint network of trails is called ______.
a - hydrolysis b - a terracette c - oxidation d - solifluction e - a seiche
Energy is lost as it moves from one trophic level to the next because
A) one trophic level does not consume the entire trophic level below it. B) some of the calories consumed drive cellular activities and do not add mass. C) some ingested materials are undigested and eliminated. D) All of the above are correct.
In developed countries, the two most deadly sources of indoor pollution are ________
A) radiation from electronic equipment and pesticides B) pesticides and cigarette smoke C) radon and cigarette smoke D) synthetic furniture materials and radiation from electronic equipment E) pesticides and cleaning agents
Describe the source and effects of an El Niño event
What will be an ideal response?