The study author found that red legos have 274 μg of accessible cadmium per gram of lego brick. The ld50 for cadmium is 100 mg/kg. How many red lego bricks would a 10. 0 kg child need to consume to reach the ld50 threshold? the average mass of a lego brick is 2. 50 grams.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.