Which two arguments did proslavery activists use to defend slavery?

slavery allowed people to develop a deep sense of gratitude.

slavery improve human courage, strength, and willpower.

slavery was needed to maintain the southern economy.

slavery had historical roots because ancient societies had slaves.

slavery ensured the smooth functioning of american society.

How are diamonds and graphite the same? how are they different? a. both diamonds and graphite are made entirely out of carbon. they are different because the carbon atoms are arranged differently with a more three-dimensional structure in diamonds and flat layers in graphite. b. both diamonds and graphite have atoms that are arranged with flat layers. they are different because only graphite are made entirely out of carbon. c. both diamonds and graphite have atoms that are arranged with three-dimensional structures. they are different because only diamonds are made entirely out of carbon. d. diamonds and graphite have no similarities. they are different because the carbon atoms are arranged differently with a more three-dimensional structure in diamonds and flat layers in graphite.