Answer choices are:
A. Invalidate, because energy should not leave a closed system
B. Invalidate, because the amount of energy should stay constant
C. Validate, because an aquarium is an open system that loses and gains energy
D. Validate, because the amount of energy lost was replaced by matter.
The correct answer choice is:
C. Validate, because an aquarium is an open system that loses and gains energy.
Explanation:
As we know that, the law of conservation of energy is that the total amount of energy of an isolated system prevails to be constant, it is said to be maintained or conserved over time. This law means that energy can neither be created nor be destroyed; rather, it can only be converted or transferred from one form to another.
Answer:
d. purple, spherical-shaped organisms arranged in chainlike formations
The best answer is Neoproterozoic era. Neoproterozoic Era is the unit geologic time from 1000 to 541 million years ago. It is the last era of the Precambrian Supereon and the Proterozoic Eon; it is subdivided into the Tonian, Cryogenian, and Ediacaran Periods. It is preceded by the Mesoproterozoic era and succeeded by the Paleozoic era.
