Question

1. which of the following is not an example of solar weather?

a) solar flares
b) prominences
c) asteroid impacts
d) solar wind

1. what causes auroras on earth?

a) reflection of sunlight off clouds
atmosphere
b) interaction of solar wind with earths magnetic field
c) volcanic ash in the upper
d) lightning storms

1. what are sunspots?

a) bright, hot areas of the sun
b) cool, dark areas caused by magnetic fields
c) holes in the corona
d) gas loops on the suns surface

Explanation:

• Question 23: Solar weather refers to phenomena originating from the Sun. Solar flares, prominences, and solar wind are all solar - related. Asteroid impacts are from space objects (asteroids) and not from the Sun.
• Question 24: Auroras are caused by the interaction of charged particles in the solar wind with Earth's magnetic field. Reflection of sunlight off clouds (A) is just normal light reflection, volcanic ash (C) and lightning storms (D) are terrestrial phenomena.
• Question 25: Sunspots are cooler (than the surrounding photosphere), dark areas on the Sun's surface that are caused by strong magnetic fields. Bright, hot areas (A) are not sunspots. Holes in the corona (C) is not the definition of sunspots. Gas loops (D) are prominences.

Answer:

1. C. Asteroid impacts
2. B. Interaction of solar wind with Earth’s magnetic field
3. B. Cool, dark areas caused by magnetic fields