What would be evidence to prove that the sedimentary rock layers found on the banks of a river were formed over a period of millions of years? a) fossils from different geologic eras have been found in the rocks. b) the river has not changed course significantly for many years. c) the fossils in the rocks belong to the early cenozoic era. d) the sedimentary layers are not clearly visible.

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

On the periodic table, elements are arranged by which of the following. a. mass numbers. b. increasing atomic number. c. alphabetical order. or d. density

Growing crops in places where major pests don't live using beneficial insects to eat harmful insects using a rat trap instead of a rodenticide developing drought-resistant tomato plants using beneficial insects or natural oils to repel pests planting a different crop every year to fake out the pests keeping food covered to deter ants and rodents developing bean plants with a resistance to fungus picking caterpillars off tomato plants cultivation practice biological control cultural control genetic resistance natural chemicals