The people whose lives were changed forever because of the Agricultural Revolution (hint it came before the Ag Rev); their populations increased, their cultures and religions developed, and they became stationary.
What are hunter-gatherers?
Name the 3 basic layers of the geosphere.
What are core, mantle, crust
What percentage of the atmosphere is nitrogen
What is 78%
What is the estimated age of the Earth?
Approx 4.5 billion years old.
When humans use a resource faster than it is able to be replaced by a natural process.
What is non-renewable resource
What layer of the atmosphere do we live in?
What is the Troposphere
The energy source that replaced man-power during the Industrial Revolution.
What are fossil fuels?
This is the opposite of photosynthesis. It's what humans do to burn energy in their body.
What is cellular respiration
Coal is commonly burned to create this
What is electricity
Tina wants to determine which toothpaste whitens teeth the best. Name 3 controls Tina needs to have in her experiment.
Ex: Time of brushing teeth, water used, toothbrush, Surface of teeth, etc.
What is the current world population
What is approx. 8 billion.
Oil is typically burned for this
What is transportation