Answer:
Number 1 is warm and moist
Explanation:
A.) Veins in the pulmonary circuit carry oxygen-rich blood
red blood cells are used to circulate oxygen through out the body, thus it is true.
One method I know of is comparing a sample of the rock to other samples which the scientist already knows the age of. I forgot what this method is called but I know it's used by lazy scientists that use other scientist findings like the age of a rock to compare to their own work
Ok, so the Answer is D. Wind because wind can be transformed into mechanical energy in the wind tube and the wind tube makes electricity.