Quiz 1: What is Earth Observation

The electromagnetic spectrum can be expressed in terms of energy, wavelength, or frequency.

• True

• False

Which of the following sequence is correctly ordered (from the lowest to highest energy)?

• X-rays, Visible Light, Microwave

• Ultraviolet, Visible Light, Gamma-rays

• Microwave, Visible Light, Gamma-rays

The portion of the electromagnetic spectrum that can be transmitted through the atmosphere is called:

• Black body

• Atmospheric scattering

• Atmospheric window

• Absorption window

The main characteristic of water reflectance is that it only reflects in the near-infrared and has no reflection in the visible light range.

• True

• False

Which of the following factors does NOT influence the amount of atmospheric scattering:

• size of particles and gas molecules

• abundance of particles and gases

• the distance the radiation travels through the atmosphere

• none of the above