A common pulley is effectively a
A. hydraulic press.
B. common lever.
C. tension producer.
D. gear.
Answer: B
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If you visited Curitiba, Brazil, you would expect to find
a. no recycling program b. a sophisticated bus system c. very polluted air d. residents who wish to relocate to other cities e. no high-rise apartments
The Goode’s is based on two different projections, one for the low latitudes and one for the high latitudes. At approximately what latitude does the projection change?
(Hint: Look for the change in the shape of the map margins in the North Pacific.) Study the Goode’s Interrupted projection.
In the region of Sub-Saharan Africa, where is Mount Kilimanjaro located?
A. In the country of South Africa B. In the island country of Madagascar C. On the border between Niger and Nigeria D. On the Tanzania--Kenya border
What is a frustule?
a. The by-product of photosynthesis in diatoms b. The rigid cell wall of a diatom c. A microscopic phage that attacks diatoms d. A small appendage on a cyanobacteria