Which is the origin of the sun’s energy?(1 point)
Responses
solar flares
burning hydrogen
charged particles
nuclear fusion
nuclear fusion
Two astronomers are viewing temperature data from each of the sun's layers, but the layers aren't identified. Describe one way the scientists can use temperature to identify which layer they are studying.(1 point)
Responses
The highest temperatures are from the corona.
The lowest temperatures are from the core.
The highest temperatures are from the radiative zone.
The lowest temperatures are from the photosphere.
The highest temperatures are from the corona.
How have astronomers formed their ideas about the layers of the sun?(1 point)
Responses
developing mathematical models based only on known data
using theoretical models combined with known data
observing all the layers during total solar eclipses
making direct observations of the sun's layers
using theoretical models combined with known data
Which of the following protects Earth's atmosphere from solar wind?(1 point)
Responses
radiative zone
radiative zone
convection currents
convection currents
magnetosphere
magnetosphere
hydrogen atoms