According to the law of conservation of energy, energy cannot be created but it can be destroyed. true false

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Why is it important to study each branch of earth science?

If a cell is placed into a hypertonic environment,what will happen to it ? a)it will shrink or shrivel b)nothing c)it will burst d) it will expand or enlarge