A meteorologist.
An Oceanographer!
What kind of clouds are covering the sky on weekends
clouds
Cirrus clouds are light and feathery.
cirrus clouds mean usually fair (good) weather
An Ecologist is a scientist who studies ecosystems.
a type of scientist who studies about metal is called metallururgist
what is the scientist that studies motions? A Physicist
A mineralogist studies minerals.
An ecologist studies pollution
The kind of scientist who studies Urology would be a Biologist, since Urology concerns a biological function (urination). If you mean the kind of doctor who studies Urology, that would be a Urologist.
meteoroligists
Botanist
An Ichthyologist.
Audiologist
cosmologists
seismologist