Answer:
A) citric acid cycle alone.
good luck ❤
Explanation:
It is unchanged and can be used again for the same chemical reaction.
is the answer
The study of energy and its changing
form is called thermodynamics. Thermodynamics is the branch of physical science
that is concerned with conversions between heat and other forms of energy such
as chemical, electrical or mechanical energy. Under thermodynamics, energy can
be transferred from one place to another and from one form to another.
The population will later, cease to exist.
Since the population is experiencing (about) the same rates of immigration and emigration, these 2 factors will not change anything.
A low birth rate and a high death rate means that more people are dying than being born.
Therefore the population will decrease until there is nobody and it will cease to exist.
<span>Its components are visible. --heterogenous
It may be mistaken for a pure substance. --homogenous
It can be separated using distillation. --homogenous
Concrete is an example of this kind of mixture. --heterogenous
Hope this helps!</span>
