Which of the following statements correctly describes a difference between biomass-fired power plants and traditional fossil-fuel-burning power plants, such as coal-fired plants?
The production of biomass does not release carbon dioxide but burning fossil fuels does.

The operational costs of biomass plants are very high when compared with traditional fossil fuel plants.

Biomass plants produce higher levels of mercury emissions than fossil fuel plants.

Biomass as a fuel source is not widely available all over the world while fossil fuels are abundant around the world.

B The operational costs of biomass plants are very high when compared with traditional fossil fuel plants.

i need the answer to this too but idk it ; -;

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: