1.which result from the Interaction of solar weather on Earth’s magnetic field? Select the two correct answers. (1)
A. geomagnetic storms
B. auroras
C. radiation belts
D. solar wind
2.The sun’s energy is generated in its(1)
A. radiative zone
B. corona
C. convection zone
D. core
3.how does nuclear fusion make life on Earth possible?(1)
A. blocks radiation frome reaching Earth
B. releases energy that warms Earth
C. creates Earth’s magnetic field
D. creates the sun’s magnetic field
4.During the low point in the sun’s 11-year cycle, the___ gravitational magnetic, radiative or electric field lines up with the poles, resulting in___ more or fewer . At the peak of the solar cycle,__ more or fewer sunspots tend to form. During that phrase of the solar cycle, intense bursts of radiation cause__sunspots or solar flares or solar eclipses. This often occurs with coronal mass ejections, which are magnetic projections or eruptions of huge amounts of plasma from the sun.
5.Over the past 100 years, Earth’s temperature has increased about 1.1F or 2.4 F . Solar heating due to space weather is responsible for about ___ 25%or 50%
6.which are predicted to happen in the case of a severe geomagnetic storm? Select the two correct answers.(1)
A. extra currents in the ground will disrupt power grid operations
B. signals from radio navigation systems will be disrupted and be inaccurate
C. satelites will be force to Earth’s surface
D. high-frequency radio waves used for radio communications will be blocked