We have used more natural resources since 1955 than in all of recorded human history up to that time
Indicate whether the statement is true or false
True
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Horizon A in a soil is ____
A)low in organic matter B)the site of little biological activity C)comprised entirely of sand and gravel D)where the parent material of the soil is located E)composed mostly of clays and stable minerals
The energy bill passed by the U.S. Congress in 2007 ________
A) will, according to analysts, allow us to import only 25% of our oil instead of 60% B) primarily focused on major new policies for conservation and for development of renewable energy sources C) mandates the rapid development of all remaining fossil fuel resources as quickly as possible D) primarily focused on taxing polluters and those who profit from the fossil fuel industry E) raised the CAFE standard to 35mpg for vehicles by the year 2020
In a mutualistic relationship
A. endoparasites outnumber ectoparasites. B. one species benefits while the other is harmed. C. both species benefit. D. one organism benefits while the other is unaffected.
Highly porous and permeable soils would reduce flooding.
Answer the following statement true (T) or false (F)