What are the common indicators to determine if solar activity is strong?

The three major circles of the sun's inner perimeter, the radiation zone, and the convection zone cannot be directly observed. The sun that can be directly observed is the atmosphere of the sun, which is divided into three layers from the inside to the outside: the photosphere, the chromosphere and the corona. Solar activity occurs mainly in the chromosphere, which is the result of the movement and change of matter on the surface of the sun.

That is, in some areas of the chromosphere of the solar atmosphere, there is a sudden increase in a short period of time.

The phenomenon of brightness, this phenomenon is called flare, also known as the eruption of the sun's chromosphere. Both flares and sunspots are major markers of solar activity, both with a period of 11 years.

The winds on the earth are strong, filial, fast, and slow, sometimes strong and sometimes weak. And the stream of particles emanating from the "coronal hole" of the sun's corona.

Sometimes it's fast, sometimes it's slow, sometimes it's strong, sometimes it's weak. The particle stream is mainly composed of protons, neutrons, and electrons. The above reaches every second.

The solar wind above 350 km is a general solar wind. Another type of solar wind is the fast solar wind, with a speed of 100 per second

0 km or more. This stream of particles from the solar wind comes from flare areas of intense solar activity. A flare is that occurs with the corona.

layer adjacent to the chromosphere, similar to the phenomenon of **. The energy of a large flare can reach an energy level of 1025 joules, which is equivalent to the power of 10 billion megaton hydrogen bombs**. The flare emits a lot of ultraviolet rays, rays, rays, and the same.

It also ejects a large number of high-energy protons, neutrons and electrons.

Flare. The main markers of solar activity are sunspots and flares, which are the most intense displays of solar activity. A solar flare is one of the most violent eruptions that occur in the local region of the solar atmosphere, releasing a large amount of energy in a short period of time, causing instantaneous heating in the local area, emitting various electromagnetic radiations outward, and accompanied by a sudden increase in particle radiation.

a Sunspots.

b Flare. c Solar wind.

d Explosion of the sun.

Answer: b Solar activity is a general term for all the active phenomena in the solar atmosphere. There are mainly sunspots, light spots, spectral spots, flares, solar and coronal transient events, etc.

Caused by electromagnetic processes in the Sun's atmosphere. The period is intense and sometimes weak, with an average cycle of 11 years. The Sun during periods of intense activity (known as the "Perturbation Sun") radiates large amounts of ultraviolet light, X-rays, particle streams, and intense radio waves, which often cause phenomena such as auroras, magnetic storms, and ionospheric disturbances on Earth.

The sun's atmosphere is filled with magnetic fields, and the more complex the magnetic field structure, the easier it is to store more magnetic energy. When there is too much magnetic energy stored in the magnetic field, the energy is released through solar eruptive activity, and solar flares are a form of solar explosive activity.

Long-term observations have found that most flares occur in the sky above the sunspot group, and the more complex the structure and magnetic polarity of the sunspot group, the higher the probability of a large flare. On average, a normally developing sunspot swarm produces a flare in almost a few hours, but there are very few flares that actually have a strong impact on the planet.

Answer: B: Sunspots and flares are the main markers of solar activity, and flares are the strongest indication of solar activity; the impact of magnetic storms on the earth by Qi Chan or too high Wu Yang activity; Solar radiation is the way in which the sun radiates energy outward in the form of electromagnetic waves.

Answer B: This question examines the activity of the sun. The size and number of sunspots are indicators of the strength of solar activity, and the outbreak of a flare is the most intense indication of solar activity.

The sun has always been sacred in people's hearts. However, when looking through a telescope, it was discovered that there were also groups of dark spots on the sun, which were sunspots. In ancient times, people also saw sunspots in the dim weather, but they couldn't figure out what they were, so they made up a story about a three-legged crow on the sun.

This imagination seems ridiculous today, but for a long time people used the term "golden crow" to refer to the sun. Han Yu, a great writer of the Tang Dynasty, wrote in a poem describing the sun: "At the beginning of the golden crow seabed, Zhu Hui scattered the green glow.

It is now known that "sunspots" are dark spots on the sun's photosphere that are 1,000 2,000 times cooler than their surroundings, and are very magnetic, with a magnetic field strength of 3,000 to 4,000 gauss, while the earth's magnetic field is less than 1 gauss. Sunspots often appear in pairs, one being the magnetic north pole and the other being the magnetic south pole. Sometimes there are many small sunspots around the big sunspots.

There are sometimes more sunspots, sometimes less, and there is a certain periodicity from more to less, with an average period of 11 years. Although people no longer feel strange about sunspots on the sun, there is still a lack of essential understanding of the causes and activity cycles of sunspots.

In addition to sunspots, the sun also has various activity manifestations, such as light spots, spectral spots, flares, radio and other phenomena, which are collectively referred to as "solar activity".

In fact, the recommendations are not necessarily correct! Because sunspots aren't!

Answer A: This question examines solar activity. Changes in sunspots and flares are markers of the strength of solar activity.

Solar activity is a general term for a variety of different activity phenomena in local areas of the solar atmosphere. Includes:

Sunspots are the basic markers of solar activity, spectral spots, and powerful shortwave radiation from solar wind flares can cause drastic changes in the Earth's ionosphere. The impact on humanity is significant. Causing shortwave communication to be interrupted.

Sun-solar activity has been linked to volcanic eruptions, droughts, floods, diseases of the human heart and nervous system, and even traffic accidents.