Page 7 - E book prim 4
P. 7
Delta Modern Language Schools
Science department
Grade 4
1st term 2024-2025
Comparison between fish and human according to their respiratory
system
Human Fish
Starts with Nose mouth
Breathe by Lungs Gills
Breathe from air Water
Entered gas O2 O2
Released gas Co2 Co2
Human changes in the environment
Farming and Cutting down building introducing new air/water
clearing lands forests communities animals and pollution
plants
Human role in restoring environment: -
1-Replanting the cleared forests.
2-Removing the pollutants.
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