Astudent wants to shorten the ripening time for tomatoes. he predicts that the more water the seedlings receive, the faster the tomatoes will ripen. he grows 20 tomato plants in a garden in full sunlight that has dry soil, and 20 tomato plants in the same garden where there is more moisture in the soil. he records the time it takes for fruit to develop and ripen on the plants in each location. what is test variable (independent variable) in this experiment? *
i just learnt this recently but i need to look through my notes again
answer is: naturally occurring solid, inorganic compound or element is mineral.
minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.
for example magnetite is a mineral of iron oxide (fe₂o₃).
calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).
dolomite is an carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).