How Herbicides .pptx jbfhjafuygfywfhshfvyuf

Herbicides

1. H o w Her b i c i des a n d Pesticides a f f e ct t h e E c o s y s t e m ?

2. P e s ticides P e s t i c i d e s a r e f o u n d a s c o m m o n c o n t a m i n a n t s i n soil , air , water a n d o n n o n - t a r g e t organs i n o u r u r b a n landscapes . O n c e there , t h e y c a n harm plants a n d a n i m a l s ran g ing f r o m b e n e f i c i a l s o i l m i c r o o r g a n i s m s a n d i n s e c t , n o n - t a r g e r p l a n t s , f i s h , birds , a n d o t h e r wildlife .

3. E x a m p l e o f Pestic i d e s

4. H o w d o pesticides a f f e c t t h e e c o s y stem ? P e s t i c i d e s can t r a v e l g r e a t distance t h r o u gh t h e e n v i r onment . W h e n s p r a y e d o n c r o p s o r i n garden s , p e s t icides c a n b e b l o w n b y t h e wind t o other a r e a s . T h e y can also f l o w w i t h r a i n w a t e r into n e a r b y s t r e a m o r c a n s e e p through t h e s o i l i n t o ground w a t e r .

5. W h a t i s h e r b i c i d e ? A H e r bicide i s a p e s t i c i d e u s e d to k i l l u n w a n t e d p l a n t s . S e l e c t i n g h e r b icide s k i l l c e r t a i n t a r g e t s w h i l e l e a v i n g t h e d e s i r e c r o p r e l a t i v e l y unharmed . S o m e o f t h e s e a c t b y interfering w i t h th e g r o w t h o f t h e w e e d a n d a r e o f t e n b a s e d o n p l a n t hormones .

6. E x a m p l e o f herbicide s

7. H o w d o h e r bicide a f f e c t t h e ecosystem ? H e r b i c i de a r e s p e c i f i c a l l y p l a n t poisoning , a n d a r e n o t v e r y t o x i c t o animals . . . H o w e v e r , b y including l a r g e changes i n v e g e t a t i o n , h e r b i c i d e s c a n i n d i r e c t l y a f f e c t population s o f b i r d s , mammals , i n s e c t , a n d o t h e r a n i m a l s t h r o u g h c h a n g e s i n t h e n a t u r e o f their h a b i t a t .

8. G R O U P 2 Myka A l t h e a Descarga r J e r a l d i n e M a l l a C h r i s t i n e B a n a y a t J a n e l l e G u i l l ermo Edrian D e s c a r g a r J e r r y - i a n Manual Jasp h e r L e e F e r r e r Raffy B a l o c a M a r i e l A l a p