Answer:
is this a question on your classwork or just a riddle lol
Explanation:
The lake bottom is lined with rocks because an abiotic is a non-living thing in an environment while biotic is a living thing in a environment
Answer:
Water potential 
Explanation:
As we know,
Water potential is equal to the sum of pressure potential and solute potential
Ψ
ΨS
ΨP
Where Ψ is the water potential
ΨS is the solute potential
ΨP is the pressure potential
Given -
Solute potential ( ΨS ) 
Pressure potential ( ΨP ) 
Substituting the given values, we get -
Ψ

Ψ

Explanation:
Living things reproduce to ensure the continuation of their species. Reproduction is a process unique to living organisms through which they produce young ones of their own kind.
I hope you help :)
Answer:
Hydrogen
Explanation:
Because helium is a noble gas with a full valence shell, it does not bond with other atoms readily. This means that it cannot be a molecule. However, hydrogen can bond with a lot of things, because of its unique property of having just one electron, meaning that it can donate or accept one, making it able to easily become a molecule. Hope this helps!