1. Which substance damaged bird life until it was largely banned in the 1970s?
A.DDT
B.CO2
C.CFCs
2. In what way did the return of local wildlife in Namibia increase the quality of life for humans in the area?
A.The water was cleaner.
B.More trees were planted.
C.Tourism increased, bringing jobs for locals.
2007-05-29 05:37:43 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Biology
A.DDT
2007-05-29 05:40:08 · answer #1 · answered by DanE 7 · 3⤊ 0⤋
1. A 2. C
2007-05-29 05:39:51 · answer #2 · answered by vinchenso21 1 · 14⤊ 0⤋
1) Can't be CO2. CO2 is naturally found in the atmosphere.
I think CFCs were banned much later and rather damaged the ozone layer (or so...)
So DDT. DDT is really quite harmful and dangerous.
2) C surely, because tourists like wild animals...
2007-05-29 05:44:37 · answer #3 · answered by amethyst 3 · 4⤊ 0⤋
1. DDT Read Silent Spring by Rachel Carson
2. Not sure. I'd guess and say C.
2007-05-29 05:40:27 · answer #4 · answered by Lady Geologist 7 · 6⤊ 0⤋
For my Homies in K12:
A.DDT
C.Tourism increased, bringing jobs for locals.
2015-05-14 04:34:27 · answer #5 · answered by Anonymous · 13⤊ 0⤋
1. A
DDT built up in the food chain until it got to the Pergriene Falcons. Made them lay weakened egg shells, this led to young being crushed in the nest
/Nice/
2.Dunno
2007-05-29 05:58:25 · answer #6 · answered by alienwhoseshiplandedonearth 3 · 0⤊ 7⤋