Aflea may live on the skin of a dog and feed on the dog's blood. this relationship between the flea and the dog is an example of a. competition b. parasitism c. commensalism d. mutualism

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.

answer; somatic;

explanation:

the sun shines white and black light to our planet. the white light has all the colors in it. in our upper atmosphere, we have dust particles and oxygen molecules. the white light meaning all of the colors in a rainbow shines through the upper levels of the atmopshere and the blue light scatters across the entire planet. that is why our sky is blue.