The fact that volcanic rock has often been found early in the rock record but less frequently in later rock layers suggest to scientists the following conclusion about early earth: <span>volcanic activity was more common in the past than it is today.
</span>Besides volcanic activity in general, also huge volcanic eruptions<span> were much </span>more common than today<span>.</span>
Answer is (3) Knowledge of astronomy was used by
<span>Muslims to fulfill religious obligations.</span>
Answer:
Aspects of capitalism and socialism
Explanation:
The two elements that are combined in a mixed economy are simply aspects of capitalism and socialism.
A mixed economy both the government and market forces determines the production of materials and how they become distributed.
Most economies in the world are mixed economies. The advantage of this economic model is that it checkmates monopoly.
