شرح ساينس الصف الرابع الابتدائي لغات - الفصل الدراسي الأول
شرح ساينس رابعة ابتدائي - ترم أول

لينك تحميل الملزمة
https://drive.google.com/file/d/1_trD51064DO4jxzvxf6dmVlyHdUI1JUj/view?usp=sharing

لينك تليجرام
https://t.me/mrahmedelbashagroup

In This Part :
Structural Adaptation of fish to breathe under water:
- Unlike human, fish don't breathe using lungs, but they have gills to breathe.
- Gills are considered as unique structural adaptation that allow fish to live and
breathe under water.
- Gills are found on both sides of a fish's head.

How do fish breathe under water ?:
Humans Change the Environment

As the human activities have negative effects on animals and plants, they also have negative effects on human such as:

The role of human to help restore ecosystem :
• As humans can cause harmful changes, they can help restore their ecosystems by :
- Replanting the cleared forests.
- Removing the pollutants of air and water.
- Preserving plants and animals in these ecosystems.


بالتوفيق
مستر احمد الباشا