1. VESI JA ELU 5. Nimeta neli veetainede erinevust maismaataimedega võrreldes.
(4 p)
1. Kuidas hingavad järgmised loomad? (2 p) • _________________________________________________
• Haug - _______________________________________ _________________________________________________
• Tiigikonn - _____________________________________ • _________________________________________________
• Vesihark - _____________________________________ _________________________________________________
• Vaal - ________________________________________ • _________________________________________________
2. Kuidas liiguvad järgmised loomad vees? (2 p) _________________________________________________
• Särg - _______________________________________ • _________________________________________________
• Hallhani - ____________________________________ _________________________________________________
6. Kuidas vesi võib reostuda? (2 p)
• Vesilik - ______________________________________
____________________________________________________
• Hallhüljes - ___________________________________
____________________________________________________
3. Selgita, miks saavad kalad vees hingata, veeimetajad aga mitte?
____________________________________________________
(2 p)
____________________________________________________
____________________________________________________
7. Mis võib juhtuda veekoguga, kui sinna satub reovett? (2 p)
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
____________________________________________________
4. Nimeta neli veetaime. ( 2 p)
____________________________________________________
• _________________________________________________
8. Mida saad sina teha, et vesi vähem reostuks? (2 p)
• _________________________________________________
____________________________________________________
• _________________________________________________
____________________________________________________
• _________________________________________________ ____________________________________________________