As economic development increases, birth and death rates decrease.
Answer the following statement true (T) or false (F)
True
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Seedless vascular plants lived in low wet habitats because
a. they needed water to reproduce. b. they did not have a means to transport water through their structure. c. they had no protection from desiccation. d. they were a food source for amphibians. e. none of the above
There are less than 500 species of fish, crustacean, and mollusks that are regularly harvested from the ocean
Indicate whether the statement is true or false
Standard temperature data must be collected from sensors mounted at a height of:
A) 2 meters (6 feet) B) 3 meters (10 feet) C) 1 meter (3 feet) D) 1.5 meters (5 feet)
________ use mirrors to concentrate the sun's rays on a series of pipes, which heats fluid inside the pipes to boiling, producing steam. The steam is then used to spin a turbine and generate electricity
A) Passive solar technologies B) Photovoltaic cells C) Solar photovoltaic farms D) Biofuels E) Concentrating solar power systems