They are reactants because they are present before the reaction.
Science-what is the correct arrange of this E,M,A,I,H,T,P,C,M,E,R
Mariana [72]
Answer:
Champetre, imprecate, metameric, Hemiptera ??
Explanation: Choose I'm out of ideas xD
Plants need nitrogen in order to grow. Nitrogen is abundant in the earth's atmosphere, but plants cannot use it in that particular form (nitrogen gas). Certain bacteria which reside on some plant roots are able to change atmospheric nitrogen into a form that plants can use (ammonia).
The difference in water concentration across a selectively permeable membrane.
Weather change, the air density l, the way the animals are acting and satlities