Earth's Physical Geography Crossword

the path one body makes as it circles around another
an imaginary line through Earth between the North and South poles, around which Earth turns
the sphere of a very hot metal at the center of Earth
a huge block of Earth's crust
soft, nearly molten rock
the removal of small pieces of rock by water, wind, ice
condition of the air and sky from day to day
water that falls to the ground as rain, sleet, hail, or snow
average weather over many years
a park-like combination of grasslands and scattered trees
desert vegetation that needs little water
an area of cold climate and low-lying trees