weekly sheet 4

cat fish can survive in ..............water environment

• fresh and fast

• Salt and still

• Salt and current

• fresh and still

coral reef live in ...............of aquatic ecosystem.

• frozen

• shallow area

• Abyssal zone

• fresh water

An example of salt water ecosystem

• Nile river

• Assal lake

• A glacier

• Nasser lake

There are many salty aquatic environments in Egypt such as

• wadi .alrayan

• Nile river Estuary

• Qarun lake

• burrullus lake

All of the following are examples of Geosphere except

• minerals

• helium

• Rocks

• molten rocks

Insects lay their eggs in systems that are found in

• streams

• ponds

• Sea

• Rivers

Seas and oceans water meet rivers water at

• water shed

• Estuary

• underground

• surface canal

Ponds and swamp are from

• wetlands

• underground

• Estuary

• qarun lake

Respiration of catfish is an example of reaction between ..........systems

• Atmosphere and hydropshere

• biosphere and Hydrosphere

• biosphere and atmosphere

• Geosphere and biosphere