Select the correct answer from each drop-down menu. Complete the passage about the nitrogen cycle. IF YOU POST FILE INSTEAD OF ACTUAL PHYSICAL ANSWER IM REPORTING YOU!
During nitrogen fixation, specialized bacteria living in Earth’s 1) convert nitrogen taken from the 2) onto ammonia. Another set of bacteria convert the ammonia to compounds called nitrates that plants and animals can use.

1. A. cryosphere, B. geosphere, C. atmosphere
2. A. hydrosphere, B. atmosphere, C. geosphere

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)