Hot, melted rock is injected into several rock layers. Over time, the rock cools. It becomes solid and cuts through the surrounding rock. Which choice explains how the age of this rock relates to the surrounding rock? A. the geologic record
B. the law of superposition
C. the principle of unconformity
D. the law of crosscutting relationships

i’ll make it the thing

Did you know that a blue wales tongue weighs more than an elephant?

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos

In the first stage of the nuclear fuel cycle the spent fuel must be transported, processed, and disposed of properly. true or false