Planet Earth Crossword Puzzle

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QUESTIONS LIST: nitrogen : earths atmosphere is made up of 78% _ and 21% oxygen, oceans : the first life developed here, ozone : this layer protects earth from harmful solar radiation, water : 70% of earth is made up of _ , rocky : earth has _ surfaces, life : earth is the only known planet to support this, rotation : the _ of the earth is gradually slowing down, sun : earth is the 3rd planet from the _ , terrestrial : earth is the largest planet of the _ planets, densest : earth is the _ planet in the solar system, deity : earth is the only planet in the solar system that is not named after a greek or roman _ , mantle : earth has 3 layers; the crust, the core, and this, volcanic : water came to surface from this activity