Which of the following statements supports the concept that organisms are still evolving?

the increasing population of humans.
the decreasing number of fossils found in rock.
the increasing need for new antibiotics and medicines.
the decreasing number of new species being discovered.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

What approach is required to balance the objectives of sustainable development? balancing the objectives of sustainable development requires a(n) .

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.