BIOLOGY
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
ملاوٹ شدہ یا آلودہ عناصر کا زمین میں رس کر زیرِ زمین پانی کے ذخیرے تک پہنچنا کیا کہلاتا ہے؟
- Air pollution
- Water pollution
- Both A & B
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Groundwater pollution occurs when harmful substances enter underground water.
- Pollutants can come from industrial waste, fertilizers, pesticides, and sewage.
- These substances can seep through the soil and into groundwater recharge areas.
- Habitat destruction
- Hunting
- Pollution
- Disease
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Biodiversity is the variability among living organisms from all sources,
Including terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part;
This includes diversity within species, between species, and of ecosystems.
