Briefly discuss some disadvantages of aquaculture
What will be an ideal response?
Dense concentrations of farmed aquatic 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. Farmed aquatic fish and other organisms are often fed grain or ocean-caught fish, affecting food supplies and wild fish populations. 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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How many more electrons can fit within the valence shell of a hydrogen atom?
A. 2 B. 1 C. 0 D. 7
Summarize Donella Meadows' comparison of neoclassical and ecological economics.
What will be an ideal response?
The _______________ is the imaginary circle around Earth halfway between the two poles
Fill in the blank(s) with correct word
Tectonic plates are pieces of the ________ that float on the more fluid ________ below
A) crust; lithosphere B) asthenosphere; lithosphere C) lithosphere; asthenosphere D) mantle; crust E) lithosphere; mesosphere