Since cultivation began, up to________ of the carbon originally present in the surface soil layer has been lost.
A) 30 per cent
B) 23 per cent
C) 42 per cent
D) 19 per cent
Correct Answer:
Verified
Q1: Agriculture dates back _ years ago.
A) 12,000-14,000
B)
Q2: The development of agriculture encouraged _.
A) a
Q3: Permanent cropland refers to _.
A) fallowland or
Q4: Approximately _ of the land area of
Q5: The Green Revolution is _.
A) the global
Q7: Agricultural subsidies paid by industrialized nations _.
A)
Q8: People are considered undernourished if _.
A) their
Q9: Malnourishment is common in _.
A) North America
B)
Q10: Agriculture accounts for _ of Canada's GHGs
Q11: Eating at the lowest level on the
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents