What is the relationship between weathering and the process of alternate expansion and contraction?

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it

The declining axolotl population in mexico city is an example of in overcrowded cities. a. the surpassing of support capacity b. changes to natural environments and native species c. the lack of safe homes and tenured spaces d. the effects of a growing urban heat island

What did the native title act do? a. it recognized and protected aboriginal rights to land. b. it stated that aborigines were to be counted as part of the census. c. it established aboriginal languages as official. d. it granted aborigines suffrage.