The answer is An object is in motion if it changes position relative to a reference point. You assume that the reference point is stationary, or not moving.
I think carbon and hydrogen.
Your question has been heard loud and clear.
Lactobacillus is a type of bacteria that mainly occurs in fermented media like yoghurts and curds , but they are mostly present in our body and make up a part of our microbiome by being present in our digestive tracts , genital systems and urinary tracts , doing their job without harming us.
Thank you.