What principle of war forbids the infliction of unnecessary suffering, injury and destruction

Describe two observations that galileo was the first to make with his telescope.

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.

Iron making developed in china almost a thousand years later than in the middle east. true false