Astudent conducted an experiment that used two rose plants to determine if a liquid formula for fertilizer was better than a dry formula. he tested each fertilizer on a single plant for one month, and he concluded that the liquid formula was better. when he described his conclusion to his teacher, she told him he needed to conduct additional trials. the teacher most likely asked for additional trials because
a)she did not believe the new formula plants grow better than the old formula.
b) it was necessary to see data from more plants before the conclusion could be accepted.
c) it was necessary to have tested the fertilizer on different kinds of plants.
d)she thought he should test additional fertilizer formulas on the same two plants.

[ answer ]

foliated

[ explanation ]

foliation forms in a rock when pressure squeezes the rock together. the rock then has a design of many different color little lines. there are three types of foliated rock. the types are slate, schist, and gneiss. each type of foliated rock is different based on grain size and foliation characteristics. the lines appear when the rock has been under pressure.

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step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

a = executive branch; b = judicial branch

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.