1) What is the atmosphere mostly made of?  a) Oxygen b) Hydrogen c) Carbon Dioxide d) Carbon Monoxide e) Nitrogen f) Helium 2) What is the largest Earth System? a) Hydrosphere b) Atmosphere c) Biosphere d) Geosphere 3) What is the atmosphere needed for sedimentary rocks to turn to Metamorphic Rocks? a) Extreme Temperature b) Weathering c) Erosion d) Crystillization e) Extreme Pressure f) Cementation 4) What do you call the way a mineral's surface reflects light? a) Cleavage b) Streak  c) Fracture d) Luster 5) What do you call the color of a mineral's powder a) Cleavage b) Fracture c) Luster d) Streak

The Earth System

от

Табло

Визуален стил

Опции

Шаблон за превключване

Възстановяване на авто-записаната: ?