HELP! Astrology! Select the correct answer from each drop-down menu. Complete this paragraph regarding dangers from the Sun.

X-rays and UV rays from the Sun can disrupt (ultra-high frequency, high frequency, low frequency) radio communication from ground-based radio towers. (aircraft, sea vessels, satellites) may also be affected by solar particles that can damage equipment. Humans in (spacecraft, airplanes, high mountains) are also susceptible to radiation damage from the Sun. Solar activity can also cause (thermal heating, geomagnetic storms, electrical storms) that can damage electrical transformers and power stations.

BLANK 1 drop down: ultra-high frequency, high frequency, low frequency
BLANK 2 drop down: aircraft, sea vessels, satellites
BLANK 3 drop down: spacecraft, airplanes, high mountains
BLANK 4 drop down: thermal heating, geomagnetic storms, electrical storms