Sentence examples for chemical traces from inspiring English sources

Food and other organic matter might decay, but they leave chemical traces that survive in the soil.

It's more like the behavior of ants, leaving chemical traces to figure out where their colleagues are.

And amazingly, to judge by chemical traces in the Isuan rocks, life on earth was already old.

But when the Times later reports that the Seattle police had found chemical traces in Frueh's autopsied body, Bech confesses to Robin.

It has not detected direct evidence of life, but it has found subsurface ice and other chemical traces of the former presence of water, a prerequisite for life.

Throughout the case, one of the prosecution's weakest points was the absence of any chemical traces of pepper spray in Mr. Faison's body tissue, blood and clothing.

How long will it take before someone develops a means of manufacturing an individual's DNA without leaving a chemical trace?

The challenge of verifying the use of chemical weapons in a war zone, particularly chlorine – which disperses rapidly and does not leave a unique chemical trace when used as a weapon – has hampered efforts to track their use.

According to Grinspoon, the key to recognizing unrecognizable life might be looking "for chemical anomalies chemicals that shouldn't be there because you have to figure that life is perturbing its environment in some way, reorganizing matter, and it will always leave some chemical trace of itself".

According to Grinspoon, the key to recognizing unrecognizable life might be looking "for chemical anomalies — chemicals that shouldn't be there — because you have to figure that life is perturbing its environment in some way, reorganizing matter, and it will always leave some chemical trace of itself".

To monitor the dynamic variations of sweep area and formation parameters during the process of multiple slugs step-by-step profile control, the multistage interwell chemical tracing technique was proposed and tested in field, in line with the features of the step-by-step profile control in fractured ultra-low permeability reservoirs and the basic principle of chemical tracing test.