The present tense of trace is:I/You/We/They trace.He/She/It traces.The present participle is tracing.
Trace elements are present in tiny amount, and only 0.2% mass of a human.
Magellan made quite an exhaustive trip from Spain to the Philippines. It included Portugal and Brazil, Guam, Cebu, Trinidad, and finally the Philippines.
they are present in very small amounts
No. Nitric acid is only present in trace amounts in the atmosphere.
"Trace elements" are elements which are present in a sample, but in relatively very small amounts. "Trace gasses" probably means gasses which are present in a sample, but in relatively very small amounts. the gases in earths atmosphere that take up less than 1% volume.
Biliran Leyte, Philippines
It can be, meaning rarely occurring, or present in small amounts, as in trace minerals. But it is also used as a noun (e.g. without a trace) and used differently as a verb (to trace meaning to follow, trail, pursue, or locate, or to draw by copying from an original).
"Trace gasses" are elements which are present in a sample, but in relatively very small amounts.
Yes they can.
Argon may be present in trace amounts in the air breathed in and out, but because it is a noble gas it has no way of remaining there.
no