Answer:
a. 30 cm³
b. 4.33 g/cm³
Explanation:
a Volume of the object = l*w*h
l = 5 cm
w = 2 cm
h = 3 cm
Volume of object = 5*2*3 = 30 cm³
b. Density of the object = mass of the object / its volume
Mass of object = 130 grams
Volume = 30 cm³
Density of the object = 
B is correct
Stars are always bigger than planets
Asteroids, comets, and meteors are generally smaller than planets
Because we are moving with it at the same speed but because that isn’t an answer choice it is probably C
Ecological succession is typically a gradual process through which a developing ecosystem becomes less stable.
Ecological succession is the observed process of change in the species structure of an ecological community over time. The time scale can be decades, or even millions of years after a mass extinction.
