(i) a. igneous
(ii) b. core
(iii) b. minerals
(iv.) a. sedimentary rock
(v.) b. crust
Answer:
c. Graded beds are evidence of a decrease in current velocity during deposition whereby coarse sediments settle out first, followed by finer sediments as the velocity decreases over time.
Explanation:
The majority of species require <u>oxygen</u> to survive
