Which statements describe how the geologic timescale is organized? Select all that apply. by intervals of time equal in length over Earth's 4.6 billion year history

by major changes in ancient Earth's climate or major natural disasters

by the appearance, disappearance, or change in dominance (frequency) of particular fossil groups

by the date that fossils were discovered by paleontologists

All of the following are extrusive landforms except           a. batholiths.   b. lava plateaus.   c. shield volcanoes.   d. geysers.  

Which of the following statements about the us federal boundaries is true

Which statement best explains the relationship between an area's geography and the temperature of its surface water? areas at low altitudes have the warmest water because they receive the most direct sunlight. areas at low altitudes have the warmest water because they have the least change in temperature throughout the year. areas at high latitudes have the warmest water because their days are the longest. areas at high latitudes have the warmest water because they have the longest seasons.