The atmosphere accounts for:

a. 3% of the total mass of the planet 0.5% of the total mass of the planet

b. 0.000003% of the total mass of the planet 0.08% of the total mass of the planet

c. 0.0025% of the total mass of the planet

d. 0.00009% of the total mass of the planet

D

Explanation:

Weight of atmosphere would apply pressure on Earth's Surface

P = F/A

P=Atm  pressure , F= force , A= area

Let mass M

M x g / A = P

g= 9.81 m/s^2

A is the surface area of a sphere = 4 x π x r^2

r= radius of earth

Putting values

∴ M = 5.26 x 10^18 Kg

We know that total mass of Earth is 6×10^24 Kg.

Therefore we can say that The atmosphere accounts for:0.00009% of the total mass of the planet. Option D is correct.

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever