Why is e-waste (electronic waste) considered to be hazardous?
A. E-waste is a common source of air pollution.
B. Many sources of e-waste leach heavy metals like lead (Pb) into the environment.
C. E-waste makes up about half of the waste in the Great Pacific Garbage Patch.
D. E-waste is most commonly found at Superfund sites.
E. Lead (Pb) measured in leachate from e-waste was found to be below regulatory levels.
Ans: B. Many sources of e-waste leach heavy metals like lead (Pb) into the environment.
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Answer the following statements true (T) or false (F)
1. Skeletal muscle fibers have more than one nucleus. 2. order for something to be considered a skeleton, it must contain bone or some other hard substance. 3. Endoskeletons may be involved in directly protecting the body surface. 4. You would expect to find higher myoglobin levels in oxidative muscle fibers than in glycolytic muscle fibers.
Creating transgenic animal models for human disease research allows scientists to study new drugs and treatments in animals such as mice, before giving these drugs to humans
a. True b. False Indicate whether the statement is true or false
The sea squirts and lancelets have an inner chamber that expels water. This chamber is called the
a. intestine. b. bladder. c. atrium. d. nephridium.
Nutrients pass through this
a. A b. B c. C d. D e. E