Intellectual or physical contributions of humans to the economy are examples of
a. human resources.
b. capital resources.
c. natural resources.
d. non-renewable resources.

Explain the events that led to the iranian revolution and the following iranian hostage crisis. how was the united states involved with iran? describe the arab-israeli conflicts of the 20th century. be sure to include specific military interventions, peace agreements, and the ultimate reason for conflict.

During the late 19th century, russia's settlement and development of siberia was made possible by the invention of the

Answer the following question with at least three complete sentences. be sure to use specific examples from the lessons in your answer. why were the ancient greeks known as great thinkers?