Question

हमें ज्ञात है कि पृथ्वी पर 70% जल है तो फिर इसके संरक्षण कि आवश्यकता क्यों पड़ी?
Plss Answer in hindi i will mark u the brainest ​

Answer 1

Answer:

because jal Jo hai vo pure nhi hai

Answer 2

Answer:

because jal jo hai vo 70 nahi bit 78 percent hota hai

Explanation:

mark me as brainliest