Dendrochronology is the study of ____
a. oxygen-isotope ratios of corals
b. annual growth rings of trees
c. deuterium ratios in ice cores
d. lake-bottom sediment and soil deposits
e. pollen in deep ice caves
ANSWER: b
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Ecological economists are likely to favor finding ways to protect natural capital rather than consuming it.
Answer the following statement true (T) or false (F)
Papua New Guinea had been a colony of which nation?
A) Indonesia B) United States C) United Kingdom D) Australia E) Japan
In the early 20th century, Pierre and Marie Curie discovered that radioactive decay produces heat
a. True b. False
Most natural nitrogen fixation takes place ________, and is then taken up in plants and incorporated in plant tissue
A) in water and plankton B) in the air by bacteria C) in the soil, by bacteria D) in water by bacteria E) in the soil by worms