30)
experts estimate that over 25,000 species become extinct each year, with some estimating this number to be over 100,000. this is an alarming rate that threatens fragile ecosystems and global biodiversity. which of these is currently the leading cause of extinctions today?
a) global climate change
b) habitat loss due to human interactions
c) development of cleaner running automobiles
d) natural disasters such as volcanic eruptions and earthquakes

stupid i wont let you get a chance

explanation:

vanderwaal's forces of attraction are the electrostatic intermolecular forces that exist in a molecule due to the temporary or permanent dipoles that are developed in a molecule. in , the major intermolecular forces are dipole-dipole interactions as the molecule is polar (bent structure). so the vanderwaal's forces of interaction in between molecules are the permanent dipole-dipole interactions that develop due to the dipole that exists in between the polar h - s bond. the positively charged hydrogen atom is attracted towards the negative end of the dipole that is sulfur of the adjacent molecule. therefore, these forces of attraction are relatively stronger than that of london dispersion forces that exist in non polar molecules.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.