Explanation:
If water did not expand when freezing, then it would be denser than liquid water when it froze; therefore it would sink and fill lakes or the ocean from bottom to top. Once the oceans filled with ice, life there would not be possible.
Due to the bad trophic efficiency transfer, there is a loss in the consumption of most energy to cellular respiration at trophic levels. It also loses energy to heat, metabolism and other subsistence for biomass production. There is a higher energy loss when it is at higher trophic levels.
Answer: condition intersex
Explanation: what causes this is unknown, it's been linked to manmade, environmental chemicals that block or mimic sex hormones.
Answer:
B
Explanation:
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Potassium is just below the sodium in periodic table in s group !
so the valence electron of sodium and potassium is same and that is 1 !
