What does the term "loose nukes" refer to?

a. the attitude of Russia about using nuclear weapons
b. selling of nuclear information to foreign sources by Russian scientists
c. the smuggled radioactive material stolen from Russian nuclear facilities
d. the brain drain of nuclear scientists after ether fall of communism
e. terrorist organizations with nuclear capabilities


c

Environmental & Atmospheric Sciences

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Hurricane Katrina lost most of its power when

A) sea surface temperatures underneath it increased. B) it was still a tropical depression. C) it made landfall in the United States. D) its eye was most fully developed. E) its spiral rainbands were most prominent.

Environmental & Atmospheric Sciences

Animals that live on bits and pieces of organic material washed in from the sea or off the land are called ________.

A. filter feeders B. herbivores C. grazers D. deposit feeders E. detritus feeders

Environmental & Atmospheric Sciences

Mahogany is a tree found in the tropical rain forests of Central and South America. Mahogany lumber is prized for its beauty, durability, and color

Overharvesting of mahogany has led to the tree being classified as threatened, and there are international laws banning its harvest and trade. Although an anthropocentrist, biocentrist, and ecocentrist might all agree that it is important to protect mahogany trees, they would disagree on the reasons for doing so. Explain how they would differ in their reasoning.

Environmental & Atmospheric Sciences

What are the shortcomings of traditional simple buffers when they are used in biological systems?

A) Their pH sometimes changes too much as temperature changed. B) Their pH sometimes changes too much upon dilution. C) They often pass through cell walls and affect the cell's chemistry. D) all of the above

Environmental & Atmospheric Sciences