The "first generation" pesticides were largely highly toxic compounds, such as arsenic and hydrogen cyanide. Their use was largely abandoned because they were either too ineffective or too toxic. The "second generation" pesticides largely included synthetic organic compounds. ('Synthetic' here means made by humans -- not naturally occurring, while 'organic' means carbon containing, not to be confused with the popular use of "organic" as in "organic farming".)
next-next generation sequencing
First & second generation is usually in reference to anticoagulants (rodenticide) & when product was developed. First gen is about the 40's to 60's. I have not heard the term in reference to pesticides.
A third-generation American can best be described as someone whose grandparents came from another country.
Yes pesticides are some what bad because of what they do, they kill insects. They also go threw the ground and eventually end in water making pollution... Some of the insects that the pesticides kill are actually not going to hurt the plants that the pesticides are on in the first place. that means pesticides kill and pollute, does that sound very good. Pesticides are made from chemicals, bad ones at that and poison's in poison's out.
third generation
Differentiate between third generation of computers and fourth generation?"
Third Generation Blues was created in 1999.
Unto the Third Generation was created in 1913.
no, second generation. third generation computers used ICs.
The third generation of computers started in 1964 through 1971.
Chevrolet Camaro - third generation - was created in 1982.
Honda Civic - third generation - was created in 1983.
"Third generation" in English is terza generazione in Italian.
third generation
The "first generation" pesticides were largely highly toxic compounds, such as arsenic and hydrogen cyanide. Their use was largely abandoned because they were either too ineffective or too toxic. The "second generation" pesticides largely included synthetic organic compounds. ('Synthetic' here means made by humans -- not naturally occurring, while 'organic' means carbon containing, not to be confused with the popular use of "organic" as in "organic farming".)
No, the 94 escort is a 2nd generation and the 97 is a third generation. 1991-1996 is 2nd generation and 1997-2002 is a third generation.