Which word best replaces dog in the sentence? i give brainlist

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.

When creating visuals, a journalist should

Which economic system is supported by this passage’s main argument? mixed market economy traditional economy closed economy command economy