Nitrogen cycle

What is the nitrogen cycle?

• the ways in which hydrogen is produced and recycled.

• the ways in which nitrogen is absorbed and excreted

• the ways in which nitrogen is produced and recycled.

• the ways in which water is transported inside the plant's stem

Which one describes the correct order of the nitrogen cycle

• NITROGEN FIXATION

  MINERALIZATION

  NITRIFICATION

  IMMOBILIZATION

  DENITRIFICATION

• NITROGEN FIXATION

  DENITRIFICATION

  MINERALIZATION

  IMMOBILIZATION

  NITRIFICATION

• NITROGEN FIXATION

  MINERALIZATION

  IMMOBILIZATION

  NITRIFICATION

  DENITRIFICATION

• MINERALIZATION

  IMMOBILIZATION

  NITRIFICATION

  NITROGEN FIXATION

  DENITRIFICATION

How nitrogen is absorbed in the start of the cycle?

• through the flowers

• through the root

• through the leaves

• through the stem

Ammonia formula?

• Oxygen + Hydrogen ⇌ Ammonia

• Nitrogen + Hydrogen ⇌ Ammonia

• Francium + Mercury ⇌ Ammonia

At which state does nitrogen return to the air?

• solid

• liquid

• gas

• aqueous solution