Which type of agent prevents the body from using oxygen?
a. Choking
b. Cyanide compound
c. Irritant
d. Nerve agent
Answer: b. Cyanide compound
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What commonly used pesticide caused declines in bird populations in the 1950s and 1960s by weakening the shells of bird eggs?
A) 2,4-D B) Roundup C) Malathion D) DDT
India has been colliding with Asia for roughly 50 million years, a process that has uplifted the Tibetan Plateau. However, although the margin of Asia has been intensely deformed, India has remained largely intact. Why is this the case?
A) Asia's margin is composed of soft materials such as shale and sandstone B) There is a mantle plume beneath the Asian continent that softens the plate, permitting deformation C) Asia's rocks are over 2 billion years old and are so dense they are sinking back into the mantle D) Most of India is tough, durable, ancient shield material and is harder than the newer Asian material
What energy resource is present in the oceans with far more energy reserves than conventional oil and gas?
What will be an ideal response?
Judge the following sentence according to the criteria given below: Scientists have an excellent baseline from which to determine how pollutants have altered the marine environment BECAUSE the ocean was studied extensively before it was polluted
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct but the reason is incorrect. D) The assertion is incorrect but the reason is correct. E) Both the assertion and the reason are incorrect.