Relating to the expansion of railroads - explain 2 positive impacts and 2 negative impacts

At a continent-continent convergence,

If a population is growing quickly in a small area then what must increase as well

James hutton is ? a. extensively studied fossils. b. revealed that fossils would provide the history of past life. c. created the first scientific classification of plants and animals. d. provided geologic evidence necessary for calculating the time span of evolution.