Please: Only 5 minutes to answer :( 1: Why do we need to know the "Launch Window" for Mars?
It is when the correct side of Mars is facing the earth
It is during the Mars winter
It is when earth and Mars are closest together
It is when the cheapest airfares to Mars are available.

2: Why is it important to find Hydrogen and Carbon Dioxide on Mars.
So we can communicate with Earth
So we can have pollution on Mars when we get there.
So we can produce breathable air , fuel and water
So we can drive solar cars

a. they must be certified by the avma.

explanation:

mark brainliest and have a great day!

the child will have heterozygous dominant chromosomes as characters of his father are dominant over the characters of his mother.

the child is heterozygous

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.