What means fundamental skills
The two fundamental ecological truths are that everything is connected in an ecosystem, meaning that changes in one part of the system can have cascading effects on other parts, and that all life depends on energy from the sun for survival.
The four fundamental operations in mathematics are:additionsubtractionmultiplication, anddivision.
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The senators
Fundamental questions are propositions that individuals put forward in-order to find meaning and purpose in their lives.
I never heard about "four fundamental fractions". There is a concept of fundamental operations, which refers to addition, subtraction, multiplication and division, but I don't think that "fundamental fractions" has any commonly-accepted meaning in math.
Earliest, basic, fundamental, primal, original...
The root of the word.
the hand is in hand and feet is in your back
fundamental principle
Both created fundamental changes in the European economy.