Answer:
ponds cooler than 20 °C
Explanation:
There is great effect of temperature on the dissolved oxygen in a pond water,
When the water is hotter it will hold less oxygen but when the water is cold it will holds more oxygen. Therefore, ponds cooler than 20 °C will will have a higher average oxygen concentration.
Pottery. They are a very important vestige of this culture and can be found in almost all Melanesia.
Answer:
ummm
Explanation:
ok? dont understand this but good for you
