Scientists classify rocks into three different types. what is the main basis for the classification system they chose? a. color of the rock b. shape of the rock c. how the rock formed d. who discovered the rock

Select the word from the list that best fits the definition of branch of islam that is in iran

Which barrier to economic development is shown in the following examples? i. the high rate of hiv infection in underdeveloped nations ii. the use of children as soldiers in uganda’s army in the early 2000s iii. low literacy rates in underdeveloped nations with limited exposure to adequate education a. foreign debt b. political instability c. widespread disease d. low levels of social welfare

Good scientists always report their observations and results truthfully. this is especially important when a scientist's results go against previous ideas or predictions. coming up with inventive ways to solve problems or produce new things