Which discovery did scientists make at mid-ocean ridges that caused them to conclude that new rock was being formed by molten material?

magnetic banding
pillow-shaped rocks
older rocks farther from the ridge
rocks with similar characteristics

Older rocks farther from the ridge.

Option (C)

Explanation: It is because as we move away from the Mid-Oceanic Ridge (MOR), we observe the older rocks. And along the MOR, new rocks are being generated due to instant cooling of the sea water, whereas pillow basalts only tells us about the rocks formed due to cooling of sea water but it wont differentiate either the rock is young or old.

            Thus the scientists lead into the discovery of new rocks at the MOR formed by molten materials.

Hence, the correct answer is option (C)

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.