Inglise keel unit 5 answers
(ii) grass / clover / legume; 1
(b) (i) nitrogen fixation / Haber (process); A reduction 1
(ii) lightning; A oxidation / combines with oxygen
A ‘lightening’
R thunderstorm / lighting 1
(iii) denitrifying; A correct e.g. (Pseudomonas)
R Nitrobacter / Nitrosomonas / Rhizobium 1
(+)
(iv) fixes nitrogen / provides fixed nitrogen or NH4 ; R ammonia
ref to, clover / legume / named legume, making, amino acids /
polypeptides / protein;
(plant has) no need to rely on (fixed) nitrogen compounds in soil;