Directions: select the choice that best fits each statement. the following question(s) refer to the following processes.

(a) nitrification
(b) denitrification
(c) assimilation
(d) ammonification
(e) nitrogen fixation nitrate ions and nitrite ions are converted into nitrous oxide gas and nitrogen gas (n2).

(B) DENITRIFICATION

Explanation: Denitrification is the process through which Facultative anaerobic Bacteria reduces Nitrite ions into Nitrogen gas,this bacteria facilitates this process through respiration.

This process is one of the major causes of Global warming through the release of Green house gas called DENITROGEN-OXYDE into the atmosphere. Most of the Facultative anaerobic Bacteria are of the Pseudomonads and Paracoccus species.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."