If you have an eraser with a mass of 20g and volume of 10cm^3, what is the density

What is the broadest level of classification of life

Heredity has an impact on personal health, but environmental factors are important as well. select the best answer from the choices provided

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?