ussama
| Subject: questions Wed Feb 18, 2009 9:36 pm | |
| What is El Nino ?
What is bio pesticide ?Mention 4 advantage.
Explain a) CITES b) Eco friendly technology |
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COOL.RINI Active member
| Subject: Re: questions Wed Feb 18, 2009 9:43 pm | |
| you will get all ur answers in frank test papers |
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Shruti !!! Active member
| Subject: Re: questions Thu Feb 19, 2009 7:27 pm | |
| heyyyy i hope these help u........... 1)El Nino is a weather phenomenon. A warm ocean currrent which flows 4m N to S bet 3 to 36 degree S latitude along the Peruvian coast. due to dis current the temp does not fall and the rainfall increases along d peruvian coast. (if u want further info then refer to beeta tb.) 2) Bio pesticides r pesti derived 4m animals,plants,bacteria and certain minerals. they r usually less toxic than conventional pesticides. they affect only targeted species. they are effective in very small quantity and decompose quickly. Advantage 1. Prevent soil erosion 2. protect water quality 3. promote biodiversity. 4. Environment friendly. (u can elaborate these pts for a proper answer) |
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