Answer:
We breathe in air which has a higher concentration of oxygen than carbon dioxide and we breathe out air with a higher concentration of carbon dioxide. Both the gases are present in the inhaled and the exhaled air.
Answer:
Karl Marx
Explanation:
According to materialism as defined by Marx, a methodology focusing on human societies as they developed through history, history itself is the result of material conditions playing the importance instead of ideas.
Focusing on the change of human societies, given certain material conditions, materialism argues institutions like religion, the law systems were produced as collective economical activities took place in the organization of societies.
According to Marvin Harris, ethics and other systems that are part of the culture will have a material component.
A structure whill shape, and to greater extent a superstructure will also impose conditions
Utimately material conditions will comprise a society's relations to the ambient, which includes ethical systems and defined modes of production and reproduction.
Answer:
meaning that life is what you make it. Sorry if im wrong
Explanation:
Explanation:
the measures of fertility are .
- crude birth rate.
CBR= B/P×1000
2.Age specific fertility rate .
ASFR= B/P×1000
3.total fertility rate.
TFR=£ASFR×5/1000
£ sign means sametion
hope it is helpful to you