Answer:
oil
Explanation:
it is mined from ground so we can run out of it.
Answer:
The dependent variable is the effect.
Explanation:
The independent variable is the cause
<span>The correct option is this: THE HEART BEGINS BEATING.
A fertilized egg takes about 40 weeks to reach full maturity. At week 5, the developing fetus resemble a tadpole; at this stage, the circulatory system has begin to form and the tiny heart has started beating and the baby is the size of a sesame seed. By week 6, the heart beat of the baby can fully be detected through scan.</span>
