Briefly discuss some disadvantages to aquaculture
What will be an ideal response?
Dense concentrations of farmed animals can increase the incidence of disease, which reduces food security, necessitates antibiotic treatment, and results in additional expense. Aquaculture can also produce high amounts of waste from the farmed organisms and from the large portion of feed that goes uneaten and decomposes in the water column. If farmed aquatic organisms escape where they are not native, they can cause unpredictable harm by spreading disease or outcompeting native organisms.
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A spit that connects an island to the mainland is a:
a. hook. b. tombolo. c. barrier island. d. beach. e. baymouth bar
What is unique about development efforts in a post-conflict situation?
What will be an ideal response?
Residence time is the ________
A) average length of time a molecule of a substance spends in the environment B) length of time it takes for chemicals to be stored in the tissues of living organisms C) chemical change that occurs with time, when substances alter the growth and development of humans D) chemical change that occurs with time, when substances are altered by the sun or metabolized by microorganisms E) length of time it takes to produce toxic chemicals in the environment
Only some of the heat radiated by the Earth escapes to space
Indicate whether the statement is true or false