Nitrogen cycle
Nitrogen cycle
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AMMONIA
AMMONIFICATION
ATMOSPHERE
DENITRIFICATION
LEGUMES
LIGHTNING
NITRATES
NITRIFICATION
NITRITES
PROTOPLASM
N | I | T | R | I | T | E | S | Y | A | R | X | N | N | G |
I | O | K | G | U | C | A | G | P | X | E | E | O | O | L |
T | H | I | N | S | I | H | N | E | Q | R | F | I | C | U |
R | R | D | T | E | R | E | H | P | S | O | M | T | A | D |
A | D | L | I | A | M | M | O | N | I | A | Z | A | N | P |
T | W | Y | O | A | C | N | R | J | O | C | O | C | H | C |
E | A | M | M | O | N | I | F | I | C | A | T | I | O | N |
S | Q | A | D | X | L | J | F | C | X | E | C | F | S | D |
R | A | O | T | T | N | K | Y | I | A | N | V | I | A | X |
E | M | S | A | L | P | O | T | O | R | P | Z | R | Z | E |
D | E | O | P | V | G | K | E | I | M | T | T | T | U | L |
X | F | J | R | D | B | F | P | Q | C | P | I | I | G | K |
E | G | N | I | N | T | H | G | I | L | O | D | N | G | L |
N | V | X | J | W | S | E | M | U | G | E | L | A | E | P |
N | T | D | R | E | C | J | H | G | G | O | G | O | W | D |
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