Which best describes the results of Becquerel’s experiments? When placed in sunlight, the uranium did not form an image and when placed in darkness, the uranium did form an image.
When placed in sunlight, the uranium did form an image and when placed in darkness, the uranium did not form an image.
Both formed images when placed in their respective places.
Neither formed images when placed in their respective places.

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .

the alkaline earth metals (beryllium (be), magnesium (mg), calcium (ca), strontium (sr), barium (ba), and radium (ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. hopefully this ? i didn't fully understand the question