Is a volcanic eruption a natural phenomenon? What natural phenomena occur on the day of the spring equinox?

Natural phenomena are what we humans will inevitably encounter when we live in nature. There are all kinds of natural phenomena accompanying people's lives. We humans should protect nature to make the earth more harmonious and our homeland better. Today, I will share with you whether volcanic eruptions are natural phenomena, what natural phenomena are there on the day of the spring equinox, where does the wind come from, and is the wind a natural phenomenon? I hope everyone has environmental awareness.

Contents of this article

1. Is a volcanic eruption a natural phenomenon?

2. What natural phenomena occur on the Spring Equinox?

3. Where does wind come from? Is wind a natural phenomenon?

Are volcanic eruptions natural phenomena?

Volcanic eruption, a professional term in geology, is a peculiar geological phenomenon, a manifestation of crustal movement, and the strongest display of the earth's internal heat on the surface. It is the release of magma and other ejecta from the crater to the surface in a short period of time. Because the magma contains a large amount of volatiles, coupled with the confining pressure of the overlying rock layers, these volatiles are dissolved in the magma and cannot overflow. When the magma rises close to the surface, the pressure decreases, and the volatiles are released rapidly, thus forming a volcanic eruption. Volcanic eruption is the release of magma and other ejecta from the crater to the surface in a short period of time. Because the magma contains a large amount of volatiles, coupled with the confining pressure of the overlying rock layers, these volatiles are dissolved in the magma and cannot overflow. When the magma rises close to the surface, the pressure decreases, and the volatiles are released rapidly, thus forming a volcanic eruption.

What natural phenomena occur on the Spring Equinox?

In addition to the day and night being equal in length, there are also the following natural phenomena on the day of the spring equinox:

1. Late spring cold: Late spring cold is also a natural phenomenon that occurs during the vernal equinox. It is caused by the southward movement of cold air due to low-pressure activity and cyclone development. The northern region is prone to strong winds and sandstorms, while most areas will gradually experience continuous rainy weather and late spring cold.

2. Warming up: The Vernal Equinox is also a time of rapid warming. Except for the high-altitude and cold areas where it is winter all year round and the areas north of 45° north latitude, all parts of my country are beginning to experience warming up and are beginning to show signs of vitality.

Where does wind come from? Is wind a natural phenomenon?

1. Wind is a phenomenon of air flow on the earth, generally caused by solar radiation heat. When sunlight shines on the earth's surface, the surface temperature rises, and the air on the surface expands due to the heat, becomes lighter, and rises. After the hot air rises, the low-temperature cold air flows in horizontally, and the rising air gradually cools and becomes heavier and falls. Due to the high surface temperature, the air is heated again, causing it to rise. This air flow is wind.

2. When the gathered water vapor (cloud) condenses into water, its volume shrinks, and the surrounding water vapor comes to replenish it, forming wind. The wind on the earth is related to the water source, and the wind is generated by the expansion and contraction of water and water vapor.

3. The wind blows from the sea to the land, or from the land to the sea. In the summer, the temperature on the ground is high, and the air and water vapor expand and rise. The air space on the ground is supplemented by the air and water vapor with a higher specific gravity on the sea surface. The air on the sea surface is low, and the air contracts. The air space on the sea surface is supplemented by the air and water vapor with a higher specific gravity on the ground. In the winter, the sea surface temperature is high, and the sea surface air rises. The ground temperature is low, and the air with a higher specific gravity on the ground is supplemented along the ground.