Jessica and Rebecca are discussing a star's apparent brightness versus its absolute brightness. Jessica says that a star's apparent brightness is more difficult to determine than its absolute brightness. Rebecca says that a star's absolute brightness is more difficult to determine. Who is correct and why?

an aneroid barometer is different from a mercury barometer in that it provides readings that increase as air pressure increases.

hope it : )

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.

answer; beware of exaggerated claims without supporting evidence;