When the temperature reaches 0˚C (32˚F), the top layer of the lake freezes and turns into ice. In solid form, water molecules are less dense and thus ice floats on the top of the lake.
This solid barrier prevents any wind-induced mixing as well as protects the relatively warm water underneath. Furthermore, light is also blocked so that photosynthesis is inhibited during this period. As the lake water is separated from the atmosphere, no direct oxygen diffusion occurs.
All these factors together causes a more even distribution of nutrients and gases in a lake in winter.
Answer: Scientific observation
Explanation:
The reason for this is, Ben is observing the plants, coming up with questions.
Coral Bleaching is hazardous to fish because It leaves fish and corals vulnerable to deseases.And the average temperature of tropical oceans increases by 0.1 degrees C, over the past century.Fish are affected because, most fish in the ocean live in coral reffs, which end up dying, and leaving its habitant fish without a home.
Warm air mass advances on a cold air mass, causing rain.
Answer:
Collagen, elastin, fibronectin, and laminin are the four principle classes of fibrous proteins found in the extracellular matrix. Fibrous proteins add tensile strength to tissues but provide much of their stretchiness, as well
Explanation:
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