Sentence examples for life were present from inspiring English sources

Life is quite picky about which chemicals it utilises; therefore, if life were present on the comet, this would recognisably boost a number of key molecules.

"What we can say," Dr. Farmer added, "is that this was once a habitable environment where liquid water and the energy needed for life were present".

"Based on evidence, what we do have is, unequivocally, the conditions for the emergence of life were present on Mars — period, end of story," said Michael J. Mumma, a senior scientist for NASA at the Goddard Space Flight Center in Greenbelt, Md., who led one of three teams that have made still-controversial claims of detecting methane in Mars's atmosphere.

Radioactive carbon-14 would then be metabolized into radioactive carbon dioxide, which should only be detected if life were present.

(1997) and Joshi (2003) have shown that terrestrial planets located in an M star's habitable zone (0.02 0.2 AU) (Tarter et al. 2007) would be habitable as long as liquid water and the chemical constituents necessary for the emergence of life were present on them for a sufficiently long period of time.

I stood in a place where all the times of my life were present -- past, future, and this boy standing in front of me now.

I listened as the issues that affect my life were presented as though they belonged to a special interest group rather than half the population.

However, microbial life is present almost everywhere, including many deserts.

Carbon dioxide, essential for plant life, is present in an extremely small amount.

A wide range of marine life is present in the lagoon.

The trappings of 21st-century life are present, yet the story does not feel authentically modern".