What do fossils in sedimentary rock provide evidence of? Select two correct answer.
a. tectonic plate movement
b. lava that has cooled
c. formation of large crystals
d. organisms from the past
The correct answers are:
- a. tectonic plate movement
- d. organisms from the past
To determine the correct answers, let's analyze each option:
a. Tectonic plate movement: Fossils in sedimentary rock do not directly provide evidence of tectonic plate movement. Instead, evidence of plate tectonic activity can be found through features like mountain ranges, oceanic trenches, and volcanic activity.
b. Lava that has cooled: Fossils in sedimentary rock do not provide evidence of cooled lava. Lava is molten rock that solidifies to form igneous rocks, not sedimentary rock.
c. Formation of large crystals: Fossils in sedimentary rock do not provide evidence of the formation of large crystals. Crystals are typically formed through processes of crystal growth or precipitation and are commonly found in igneous or metamorphic rocks.
d. Organisms from the past: Fossils in sedimentary rock do provide evidence of organisms from the past. Fossils are the preserved remains or traces of ancient organisms, such as plants, animals, and even microscopic organisms. Sedimentary rocks are formed from layers of sediment, including the remains of organisms, which can be fossilized over long periods of time.
Based on this analysis, the correct answer is d. organisms from the past. Sedimentary rocks are important in understanding Earth's history and the evolution of life, as they often contain a rich record of past organisms and ecosystems.
The correct answers are:
d. organisms from the past