Science, asked by neetupoddar007, 7 months ago

ऑब्जर्वेशन एंड फाइंडिंग वॉटर पॉल्यूशन

Answers

Answered by deepanshukhatana120

1

Answer:

Unless exceptional events cause effects directly visible to the naked eye, air, and water pollution remain mostly imperceptible. ... Until the end of the 1980s, the observation and monitoring of pollution rested on conventional chemistry methods that permitted to identify and assess concentrations of contaminants in the atmosphere, water, or sediments. ... "River Sentinels:

Previous Question

Next Question

Similar questions

Math, 3 months ago

The class marks of a distribution are given as follows:- 47,52,57 , 62, 67 Find the class limits corresponding to marks 52, 57 and 62.

India Languages, 3 months ago

this question is from hindi class 10 chapter 3 ( no spam please) ...

Math, 3 months ago

5. Diagonals of a parallelogram intersect each other at point O. If AO = 5, BO - 12 AB = 13 then show that ABCD is a rhombus. 6. In the figure 5.12. PQRS and DABCR are two parallelograms. If ZP = 110° then find the measures of all angles of DABCR. S A R Fig. 5.12 7. In figure 5.13 ABCD is a parallelo- gram. Point E is on the ray AB such that BE = AB then prove that line ED bisects seg BC at...

English, 7 months ago

. Answer the following questions with reference to context. Tlay down and slept again. The sun was high in the sky when I woke up. i. Where and when had Robinson Crusoe slept before? il. Where was he asleep now? M. What did he decide to do on waking up? b. The next moming I walked along the shore and up on a little hill. i What had he done the previous morning? ii. What important fact did Crusoe...

Geography, 7 months ago

फ्यूज की तार विद्युत उपकरणों में कैसे बचाती है...

Physics, 11 months ago

a player stops a football 0.5 kg which comes flying towards him with a velocity of 10 metre per second if the impact last for one by 1/50second and the wall bounces back with a velocity of 15 metre per second then the average force involved is ...

CBSE BOARD X, 11 months ago

How does a gray fabric differ from a finished fabric?

Chemistry, 11 months ago

Name any two constituents of baking soda...