The furnace of constant fire and the ice race living in it soon became famous. It''s really that they made a lot of noise this time. A huge solidified magma ball ten kilometers in diameter. It''s hard not to observe such a big thing.


    Moore Kingdom counseled directly. It was not them who were attacked. Obviously, these people were rational and only retaliated against the kingdom that launched the attack. If they didn''t have color at this time, they would touch others'' bad luck. It must be their own misfortune.


    This is a crushing battle, so the infected people won a decisive victory without showing much high-end power.


    And they know. The war potential of underground people is actually extremely huge. If it puts great pressure on them and makes them feel too much threat. Then they are likely to unite and attack together.


    At that time, it will not be possible to deal with one or two super weapons.


    The deterrence shown now is just right. While calming the neighboring countries, it is not because of excessive fear to ask for help. After all, at present, this group of strange races with abnormal hypothermia and good at using low temperature attacks do not show a clear expansion intention.


    In fact, their activities have created a lot of energy for underground people.


    In the previous frozen field of terror, under the deterrence, the two sides reached a short-term peace. This delicate balance can be broken at any time, but it gives infection so much time. It is an important time to accumulate energy and develop science and technology.


    At present, their strength is far from enough to declare war on the whole underground world. After all, they are not facing one or two kingdoms. It''s a whole group of organisms all over the ground. But with the development and progress of science and technology, the result is not necessarily.


    After the underground friction subsided briefly, the infected people once again entered the stage of rapid development, while the Imperial Army besieging the infected people fell into anxiety.


    Huge military expenses to maintain the walls and army. It''s a headache for the Imperial military. In addition to sticking to the dungeon they call Silva, the infected people look quite calm. They climb to the ground and plant grass everywhere.


    It is literally planting grass. It is a strange purple plant. It grows fast and can be harvested in a day or two.


    The Empire also got some samples of this grass, but the analysis results showed that the composition was almost the same as that of ordinary weeds. The only difference is that it does not carry out photosynthesis. To be exact, it does not carry out photosynthesis with chlorophyll.


    The biological development of Douluo continent has been interfered too much. But the first creatures on earth to use light energy. The colors are actually purple.


    This is also a relatively normal phenomenon. Because blue and purple contain the least energy in the spectrum of natural light, purple creatures only reflect purple light and convert other colors of light into energy.


    In contrast, plants are green, which is actually quite unreasonable. Because green contains a lot of energy in natural light, plants reflect and adjust the green light, and its efficiency of using light is not high. In fact, even now, some businesses use purple pigment to use light energy. But they are already quite rare, so most people will think that plants are green.


    In fact, today''s plants were just poor creatures covered by purple microorganisms. The creatures in the upper layer filter the sunlight, leaving only purple light. These poor creatures, who were covered below and couldn''t seize the sun, had to evolve absorption. The pigment of purple light energy, which is why the color of plants is green.


    It was this pigment that enabled the ancestors of these plants to start photosynthesis. Therefore, they created a substance more terrible than the plague at that time, that is, oxygen now!


    As one of the most common oxidants. Oxygen was highly toxic at that time. Even nearly wiped out the ancestors of plants. But it''s oxygen. One wave destroyed the creatures that covered their heads, and the first wave sent away the creatures that used purple pigment, while the ancestors of plants stubbornly stayed down by relying on their resistance to oxygen, gradually making plants the color in our eyes.


    As for the plants on Douluo continent, why are they also green? This is a complex subject that even tulips have not explored and understood. After all, a wave of oxygen goes out, which belongs to an accidental plot. Not necessarily, purple pigment cannot carry out photosynthesis and produce oxygen. So many plants on the planet are green. It''s really hard to explain with natural selection.


    But those who understand this theory should at least know. With GM technology. It can change the pigment of synthetic organic matter in plants. Green is obviously not the most efficient color. Originally, infected people wanted to use black directly, but unfortunately, pure black plants are often inexplicably dried to death, and the yield is much lower than the current purple varieties. Therefore, it was not put into production before the completion of variety improvement.


    Various factors led the soldiers and assistants of the Empire to look at the infected people like ants on the wall every day. In the purple grass waves. Driving a strange creature with a shell to harvest quickly.


    Expert analysis of the Empire. This is the infected people storing food. They should ferment the grass and use it to grow mushrooms. This idea was put forward by the domestic doomsday forum. These guys who think about what to do after the end of the world once thought about the strange way of living by planting grass on the ground and then planting mushrooms underground.


    After analyzing the feasibility of this, experts believe that this is indeed reliable. Although planting grass may also be used to raise livestock. But as we all know, the energy utilization efficiency in nature is actually very low. 10% of each layer can burn high aroma. If you plant grass to raise cattle, I''m afraid it''s difficult to feed so many people underground. What''s more, cattle need time to breed. If livestock are allowed to grow and develop normally. The underground infected people have long starved to death.


    In contrast, mushrooms. Maybe it takes only one rain to grow. It grows fast. Even better. It can effectively convert the protein in plant fiber that cannot be absorbed by human beings into absorbable protein.


    In fact, it is also one of the important food sources for infected people in the early stage. So many infected people want to vomit when they see mushrooms. It was really a difficult time in those years. I ate too much. I was full of mushrooms. I began to nausea when I smelled the smell of mushrooms. Of course, I''m much better now.


    The imperial army did not want to besiege the infected people after they had a relatively stable food source. For a time, they were strongly tired of war.


    [to be continued]


    Collection and recommendation ticket ~