EM Radiation, Atmosphere, Solar Radiation

Question 1

Solar energy

Answer 1

Travels at the speed of light (3 x 10^8 m/s)

Question 2

Photon

Answer 2

Particle of energy from the sun

Question 3

The story of organisms on early earth

Answer 3

The universe was hot and desolate except for Archaebacteria, which produced so much oxygen that it became a pollutant to them. Blue green algae could use the oxygen and became abundant while Archaebacteria relocated to safer locations (such as within other organisms like algae, which were the first multicellular organisms). Early cells were, therefore, living under constant UV radiation, causing mutations, so they lived in the water.

Question 4

Calculations

Answer 4

1) c = λ v

2) E = hv

Question 5

Plank’s constant

Answer 5

h = 6.63 x 10^-34 Js

Question 6

Natural GHE vs Enhanced GHE

Answer 6

Many greenhouse gases occur naturally in the atmosphere, but the effects of these atmospheric gases can be enhanced by the gases emitted by humans contributing to climate change