The bohr model of the atom stated that the energy of an electron was quantized and therefore electrons could only exist in certain states. this was an advantage over rutherford's planetary model. the electron cloud model is thought to be an improvement on the bohr model. question: explain one advantage the bohr model has over the planetary model and one advantage the electron cloud model has on the bohr model of the atom.

The (blank) states that all loving things are made of cells.

Brass gets discoloured in air because of the presence of which of the following gases in air? a. oxygen b. hydrogen sulphide c. carbon dioxide d. nitrogen

Ascientist observes certain changes in the physical features of a particular species over time. she concludes that the species has undergone evolutionary change. she wants to study the animals by analyzing their population. she’ll use . the population of this species is decreasing considerably. if this trend doesn’t change, this species will fall under the category of animals. this is a plato question, i need to make up his biology credit.