Un hombre "pesa" 70 kg. ¿Cuál será su peso en el S. I.?

Weight of man is 686 N

Explanation:

The question says "A man "weighs" 70 kg. What will be its weight in the S.I.? "

It is given that,

Weight of a man is 70 kg

We need to find his weight in the SI unit. SI unit of weight is Newton. It is because weight is also a force with which the object is pulled.

Weight of an object can be calculated as :

g is acceleration due to gravity

So, weight of man is 686 N.

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.