Which statements explain reasons why uncomformities occur? select two options.

rocks along a fault break and move

igneous rocks form at the earth’s surface

rocks erode and sediment is deposited

no sediment is deposited over a long time

igneous tocks form between sedimentary layers

PLEASE HELP WITH THIS!!!

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

Which of the layers of the earth has the following three characteristics? i. it is made of molten rock. ii. it has currents that are constantly moving. iii. earth’s plates float on top of its currents.

Read the article about the fraser river, one of the most important rivers in canada. what is the most important species of fish in this river? why are the numbers of these fish declining?