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Agamya Misra from Birla Balika Vidaypeeth, Pilani
Subject :Sam    Class : Sample

Run-off pollution of a particular river resulted from overuse of chemical fertilizers by a nearby farm. Which of the following graphs correctly shows the resulting changes in levels of oxygen and bacteria in this river?

A
B
C
D


can someone please explain this

Ans 1:

Yuvraj Tyagi from Amity International school, Gurugram
Class : Class 8
ANS : A

Ans 2:

priyam from apeejay school, noida
Class : Class 10
please explain

Ans 3:

Arya Anupam from JNV Sherghati, Gaya
Class : Class 8
PLZ EXPLAIN

Ans 4:

Shreya Palkar from Podar International School, Buldana
Class : Class 9
I am totally Confused.Please make me clear my doubt. IIts a difficult question.

Ans 5:

Dishita from Rishi Coaching Institute, JAIPUR
Class : Class 8
Please elaborate

Ans 6:

chupapimunenya from Kairos International School, Hyderabad
Class : Class 9
yo dis shi hard af pls help. someone pls reply to my comment and explain pls

Ans 7:

Pratik Kumar from DPS Gaya, Gaya
Class : Class 8
explain this

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