Examlex
The radius of Earth is 6,378 km. The force of gravity on a 1 kg ball at Earth's surface is 9.8 kg m/s2. What is the force of gravity on this same ball when the ball is located 12,756 km from Earth's center? Hint: G = 6.67 10-11 m3/s2/kg
Primary Innovation
The creation, invention, or chance discovery of a completely new idea, method, or device.
Neolithic Revolution
A major turning point in human history, marked by the transition from nomadic hunting and gathering to settled agriculture and community living.
Paleolithic
Relating to the earliest period of the Stone Age, characterized by the use of crude stone tools and hunting and gathering as the primary means of subsistence.
Food Scarcity
A situation where the availability of food is insufficient to meet the needs of the population, often leading to hunger, malnutrition, and increased mortality rates.
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