What is the global pattern of exploitation of fisheries? Compare the yield of capture fisheries with that of aquaculture
What will be an ideal response?
"The harvest has increased remarkably since 1950, when it was just 20 million metric tons. By 2003 it had reached 132 million metric tons. Aquaculture accounted for 41.9 million tons, or 32% of the world fish supplies that year. Based on the trends shown in the figure, the ‘capture' fisheries leveled off in the 1990s, and the continued rise in fish production is due to aquaculture."
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Which of the following has a typical subarctic, very cold winter climate?
A) Seattle, Washington B) Duluth, Minnesota C) Churchill, Manitoba D) Dalian, China E) Verkhoyansk, Siberia, Russia
Cnidarians exhibit bilateral symmetry, an advancement from the phylum Porifera
Indicate whether the statement is true or false
Gradient winds follow a curved path
Indicate whether the statement is true or false
A tornado’s rotation is created by ____
a. rotation of the thunderstorm cloud b. upward flowing air in the center of a thunderstorm interacting with downward flowing air at the edges c. surface winds blowing in the opposite direction of the thunderstorm downdraft d. surface wind shear in an area where warm, humid air is rising over advancing cold air e. rising surface air meeting a downburst at the trailing edge of a thunderstorm