Alpha sigma

Name of the place

• Paris

• France 🇫🇷

• Italy 🇮🇹

• USA 🇺🇸

Name of the place

• Belgium 🇧🇪

• France 🇫🇷

• Germany 🇩🇪

• China 🇨🇳

Name of the place

• Malaysia 🇲🇾

• Singapore 🇸🇬

• Germany 🇩🇪

• India 🇮🇳

Name of the place q1

• India 🇮🇳

• Israel 🇮🇱

• Africa

• Hungry

Name of the place

• USA 🇺🇸

• Singapore 🇸🇬

• Malaysia 🇲🇾

• China 🇨🇳

1 gas in the periodic table

• Nitrogen
• Helium
• Oxygen
• Carbon

2 gas in the periodic table

• Hydrogen and Oxygen
• Helium and Neon
• Nitrogen and Argon
• Carbon and Silicon

How are gases made?

• Gases are made by crystallization
• Gases are made by solidification
• Gases are made through processes such as combustion, respiration, fermentation, and decomposition.
• Gases are made by condensation

How is oxygen made

• From underground sources
• Through the process of photosynthesis in plants, algae, and cyanobacteria
• Through volcanic eruptions
• By mixing hydrogen and nitrogen

How did dinosaurs go extinct

• Time travel mishap
• Zombie apocalypse
• Alien invasion
• Asteroid impact, volcanic activity, climate change, and possibly disease