Question 3 of 10 Which statement best describes the law of conservation of energy?
A. Energy is neither destroyed nor created during energy
transformations.
B. The total energy in an isolated system can only decrease.
C. Energy can be destroyed only in open systems.
D. Energy cannot change forms in closed systems.

Aperson who uses a computer at a desk does not have to worry about safety in the workplace. true or false

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.