https://peda.net/id/2ce69d754fe 2024-08-01T12:40:54+03:00 https://peda.net/:static/543/peda.net.logo.bg.svg <div class="license">Tämän sivun lisenssi <a rel="license noopener" href="https://peda.net/info" target="_blank">Peda.net-yleislisenssi</a></div> https://peda.net/id/2ce904944fe 2024-08-01T12:40:54+03:00 <a href="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/y2#top" title="shutterstock_42311767_sauna_jarvi_p.jpg" target="_blank" rel="noopener"><img src="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/y2:file/thumbnail/7d4df66454d5539787bc6397407dd1aa854adf94/shutterstock_42311767_sauna_jarvi_p.jpg" alt="" title="Finnish lakes are shallow, meaning that they contain relatively little water. As a result, they are sensitive even to small changes." class="thumbnail" loading="lazy"/></a> 2024-08-01T12:40:54+03:00 https://peda.net/id/2ce97e074fe 2024-08-01T12:40:54+03:00 <a href="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/b3#top" title="BI7_veneily_98A8207_peda_oh_vesi_p.jpg" target="_blank" rel="noopener"><img src="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/b3:file/thumbnail/4138f6c39586dd85cbc560eaae4f0e04b9301174/BI7_veneily_98A8207_peda_oh_vesi_p.jpg" alt="" title="Motor boat traffic has a drastic effect on many organisms, such as nesting birds." class="thumbnail" loading="lazy"/></a> 2024-08-01T12:40:54+03:00 https://peda.net/id/2ce9e1fe4fe 2024-08-01T12:40:54+03:00 <a href="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/b1v#top" title="BI7_pato_imatrankoski_oharma_98A0339_peda (1)_vesi.jpg" target="_blank" rel="noopener"><img src="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/b1v:file/thumbnail/da6f1a1c102ead67751d0d223c228a7337091a0a/BI7_pato_imatrankoski_oharma_98A0339_peda%20%281%29_vesi.jpg" alt="" title="Dams have prevented the movement of many migratory fish." class="thumbnail" loading="lazy"/></a> 2024-08-01T12:40:54+03:00 https://peda.net/id/2cea496f4fe 2024-08-01T12:40:54+03:00 <a href="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/e#top" title="Esiselkiytysallas_vesi_esa_harma_p.jpg" target="_blank" rel="noopener"><img src="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/e:file/thumbnail/82f718dbb41643ef035944dd5723ab3e3ace4a66/Esiselkiytysallas_vesi_esa_harma_p.jpg" alt="" title="Efficient waste water treatment is crucial in order to protect our water environments." class="thumbnail" loading="lazy"/></a> 2024-08-01T12:40:54+03:00 https://peda.net/id/2ceac0944fe 2024-08-01T12:40:54+03:00 <a href="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/sisemgsjakyajsesreji#top" title="sinileva_nasa (1)_Vesi.JPG" target="_blank" rel="noopener"><img src="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/sisemgsjakyajsesreji:file/thumbnail/e0a886b60cd02f77e7a991f8c9f09312f37d0a2f/sinileva_nasa%20%281%29_Vesi.JPG" alt="" title="Cyanobacteria in the Baltic Sea. Large cyanobacteria cultures during the summer are the result of nutrient emissions caused by humans." class="thumbnail" loading="lazy"/></a> 2024-08-01T12:40:54+03:00 https://peda.net/id/2ceb3a114fe 2024-08-01T12:40:54+03:00 <a href="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/rr#top" title="Rehevöitynyt ranta_vesi_nokia_esa_harma_p.jpg" target="_blank" rel="noopener"><img src="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/rr:file/thumbnail/019a6ccc9e045f68de95906b46bbb9d83008ca92/Rehev%C3%B6itynyt%20ranta_vesi_nokia_esa_harma_p.jpg" alt="" title="An euthropicated beach. Many shallow lakes have already become eutrophicated." class="thumbnail" loading="lazy"/></a> 2024-08-01T12:40:54+03:00 https://peda.net/id/2cebafb04fe 2024-08-01T12:40:54+03:00 <a href="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/b2#top" title="BI7_reheva_joki__98A6244_peda_oh_vesi.jpg" target="_blank" rel="noopener"><img src="https://peda.net/oppimateriaalit/e-oppi/peruskoulut/turku/turun-normaalikoulu/biology-and-geography-2024-2025/ebiologia-7222/vesien-suojelu/kiv2a/b2:file/thumbnail/cbc6cd4c9d2106ae1af2be2cfeb13c88e84a6fa7/BI7_reheva_joki__98A6244_peda_oh_vesi.jpg" alt="" title="Floating-leaf plants grow more common as a result of eutrophication. Eutrophication is often caused by nutrient emissions from agriculture." class="thumbnail" loading="lazy"/></a> 2024-08-01T12:40:54+03:00