StudyBrix / Subjects / Earth & space science / Earth systems Subjects
Earth systems Choose questions individually, practise online, or create a worksheet with matching answers. Counts include generated variants, not only authored originals.
Sample exercises Grades 9–12 · Earth systems Which process forms igneous rock? Only pressing an existing rock without melting Only compaction of leaves Solidification of melt Only freezing liquid water Answer and explanation Solidification of melt
Igneous origin involves molten material cooling and solidifying.
Grades 9–12 · Earth systems Which boundary has plates moving apart? Convergent Divergent Transform by definition Every boundary equally Answer and explanation Divergent
Divergence means separation.
Grades 9–12 · Earth systems At a stated constant relative rate of 2 cm/year, find movement after 50 years. Answer and explanation 100 cm
Distance=rate×time under the constant-rate model.
Grades 9–12 · Earth systems Why should a rate measured today not automatically be extended unchanged across all geological history? Answer and explanation Rates and conditions can change, and extrapolation needs evidence for persistence of the model.
Credit temporal variability and modelling assumptions.
Grades 9–12 · Earth systems What does relative dating establish directly? Always mineral mass Event order Always an exact age in years Only sample colour Answer and explanation Event order
Relative dating orders events rather than necessarily measuring absolute time.
Grades 9–12 · Earth systems Convert 3 million years into years. Answer and explanation 3000000 years
A million is 1000000.
Study notes Igneous, sedimentary and metamorphic rocks describe formation processes. Material can move among these categories through several possible pathways.
Grades 9–12 Igneous, sedimentary and metamorphic rocks describe formation processes. Material can move among these categories through several possible pathways.
Grades 9–12