4 points
A luminous source lights up an area 2.0 m away with an illuminance of
100.0 lx. How much will the illumination decrease by if the distance is
doubled? How much will the illumination decrease by if the distance is
tripled?

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must available hint(s)utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must pump water back into their cells to counter its loss due to osmosisactively pump water back out of their cells to counter its inflow due to osmosissynthesize membranes that are impermeable to substances that upset osmotic balanceactively pump salt back out of their cells to counter its inflow due to osmosis

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is