What can directly lead to unconformity on an exposed rock?
a. uplift
b. uneven rock layers
c. climate change
d. erosion

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

Why has two different alleles for the same trait?

This is collection of data made by comparing objects in standard units. in science, the units are metric.