What is shear strength? What factors collectively define a slope's shear strength? What will be an ideal response?

In the Latin American city model, what land use is located along the "spine"?

A) superior services, roads, and transportation
B) the colonial core of the city
C) a ring road or beltway surrounding the city
D) unpaved roads
E) squatter settlements

Mount St. Helens and the other Cascade volcanoes are ________

A) a row of young, active, shield volcanoes built as western North America moved over a hot spot deep in the mantle B) old, deeply eroded, basaltic shield volcanoes built when western North America was over the present-day site of the Hawaiian hot spot C) old, deeply eroded stratovolcanoes built before the Pacific Ocean existed D) young, active stratovolcanoes built on a continental margin above a sinking slab of oceanic lithosphere

Which of the following accurately describes 18O/16O ratios of the world's oceans?

A) Neither the 16O or 18O isotopes are common in water, so when either is present, it shows a disequilibrium in normal climatic conditions. B) The 16O/18O ratio is low during colder temperatures because temperatures are too low for evaporation to be effective and both isotopes remain in the ocean. C) Because 18O evaporates more readily than 16O, the oceans have a higher relative abundance of 16O during warm periods and a more balanced ratio when evaporation is less. D) During periods of colder temperature 16O is locked up in snow and ice and the oceans have a higher preponderance of 18O; during warmer periods the isotope ratio of 16O to 18Ois higher. E) The higher the ratio of oceanic 16O to 18O, the colder the temperatures because the 18O will have been mostly evaporated from ocean waters.

Fish accounts for one-third of all harvested aquatic life measured by weight, and most of this catch is freshwater fish

Indicate whether the statement is true or false.