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Biology
Chlorofluorocarbons (CFCs) are a problem because they A. have been released in large quantities in the past B. break down to reactive free chlorine atoms C. attack ozone molecules in the upper atmosphere D. all of the above I know its C and A is pretty much true but I am really not sure about B so I don't know if it is D or just C. Please help
Why are some minerals, such as copper, only needed in small amounts in your diet? A They can be found in so many different foods.B They only help with one body function. C Large amounts of the mineral can cause death. D They are not used by the body on a daily basis.
Plants produce carbohydrates for themselves through the process of photosynthesis. Which cycle is carried out when these carbohydrates are passed on among the food chain to animals and other consumers?
__________ __________ is the largest number of individuals a population can handle over a period of time. Maximum load Carrying capacity Total load Population capacity
The beginnings of a tornado are known as a funnel cloud. Please select the best answer from the choices provided T
There are more species in tropical areas than in places more distant from the equator. this is probably a result of _____.
When an organism of many cells breaks up into two or more parts and these parts survive to produce a new organism, reproduction occurs by _____.
if a carbon atom is bonded to 2 hydrogen atoms and 2 carbon atoms, what type lf bond must exist between the carbon atom
What percentages make up glaciers and ice sheets?
What is the term for any bipedal primate?
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