This physical feature has separated ethnic groups in the Balkans.

1. Iron Gate

2. mountains

3. plate tectonics

4. steppes

What one reason that immigration came to American in the late 1800s

Which statement about the years between the end of World War II and the beginning of the Korean War is not true?

If a star explodes 15 lightyears away, when will you see the explosion?

Landform characterized by high Evolation and a more or less level surface is called a

Generally which type of earthquake waves travel fastest?

What body of water lies east of attica?

What causes climate to change over time

17 of the 18 warmest years on record have occurred in the 21st century. true or false?

Which of the following indexs includes factors such as use of time, environmental issues, and income distribution to determine development? A. Human Development Index B. Genuine Progress Indicator C. Gross National Happiness D. Gross National Income

Which primary areas did president Johnson's great society