Igneous rocks, I'm not sure on all of the details about them. I hope that helps though!
I would say it is. The one that says it transports nutrients and waste in the body
The elevation on Earth tells how hot or cold is it gonna be. Hence, as the elevation on Earth increases the temperature continues to be colder while as the elevation decreases the temperature continues to get warmer
Answer: Crude Birth Rate and Crude Death Rate
Explanation: Both indicate the Natural Increase Rate of a country