_ lines are _and run north - south

Scientist believe that earths core is around 6000°c where does this heat come from

Compounds which are found naturally in the earth are called: a. ores b. composites c. rocks d. minerals

Which of the following should be considered when evaluating the credibility of a text based on the voice? whether the voice is masculine or feminineo whether or not there is biaso whether or not the voice is true to the author's actual personalitywhether or not the voice reveals the timeline of the text