Lake ecosystem

Which zone is at the bottom of the ocean..?

• Hadopelagic zone

• Epipelagic zone

• Mesopelagic zone

• Abyssopelagic zone

How much does the oceans ecosystems account to the entire Earth..

• 45 %

• 54 %

• 64 %

• 80%

The use of fresh water ecosystem are..

• Drinking water

• Dumping waste

• Irrigation

• Habitat for wildlife

The zone not in a lake ecosystem is...

• Littoral zone

• Limoetic zone

• Profounder zone

• Aphotic zone

Which are the threats to aquatic ecosystem:

• Pollution

• Over-fishing

• Afforestation

• Less Carbon footprints

Largest river in India:

• Ganga

• Godavari

• Brahmaputra

• Krishna