What characteristics do all of the outer planets share? a
They have rocky surfaces
b
They are larger than the sun
c
They all have rings
d
They are all composed mainly of hydrogen and helium gas
e
Both C and D
f
Both B and C
g
All of the above

Based off the appearance of the peppered moth, its markings would not be advantageous in a lush green ecosystem . this could cause their population to decrease as the camouflage factor would be somewhat useless and make them much more vulnerable to predators .hope this : )

Some connecting rods have to lubricate the cylinder wall or piston pin. the answer is letter d. graphite coating can be a major  additive to many  coating  systems and things such as connecting rods.  it functions as a refractory, lubricant, thermal conductor, and electrical conductor for a machine or thing to enhance its work.