contoh teks explanation...

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contoh teks explanation

Nicola S · Answer

How Snow is Made?

We all agree that the snowfall is always fascinating. In the snowfall, all people stay out of the house and play with the snow. People can make giant snowmen, trample along the snow, or play with snowballs with their families. However, are you curious about how snow is made?

Snow is water droplets falling from the clouds. These droplet waters then become solid and create snow. It happens because rain consists of water vapor particles being cooled in the air.

Snow happens when water vapor piled up in the earth’s atmosphere freezes. It happens before they turn into water droplets. This process occurs when the temperature in the cloud becomes very frigid.

Snowflakes are created by crystals of ice that have established around a little filth in the air. They then grow from small forms into big one. The form of snowflakes is varied. They can consist of 200 crystals maximum.

Salsabila M · Answer

Explanation Text: How Photosynthesis Works

Introduction: Photosynthesis is a fundamental process used by plants, algae, and some bacteria to convert light energy into chemical energy. This process is crucial for the production of food and oxygen, making it essential for life on Earth.

Process of Photosynthesis:

Light Absorption:

The process begins when plants absorb sunlight through chlorophyll, the green pigment located in chloroplasts within plant cells.
Chlorophyll captures light energy, primarily from the sun, which provides the energy needed for photosynthesis.

Water Splitting:

Light energy is used to split water molecules (H₂O) into oxygen (O₂), protons (H⁺), and electrons (e⁻).
This reaction occurs in the thylakoid membranes of the chloroplasts. The oxygen produced is released into the atmosphere.

Formation of Energy Carriers:

The electrons and protons generated from the water splitting are used to create energy-rich molecules called ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate) through a series of reactions known as the light-dependent reactions.

Carbon Dioxide Fixation:

In the next phase, called the Calvin cycle or light-independent reactions, ATP and NADPH are used to convert carbon dioxide (CO₂) from the atmosphere into glucose (C₆H₁₂O₆), a type of sugar.
This process occurs in the stroma of the chloroplasts and does not require light.

Glucose Utilization:

The glucose produced can be used by plants for energy and growth. It is also converted into other forms of carbohydrates, such as starch and cellulose, which are stored for later use or used to build plant structures.

Importance of Photosynthesis:

Oxygen Production: Photosynthesis is the primary source of oxygen in the Earth's atmosphere, which is essential for the respiration of most living organisms.
Food Production: It forms the basis of the food chain, as plants produce the organic molecules that serve as food for herbivores, and subsequently for carnivores.

Conclusion: Photosynthesis is a vital process that supports life on Earth by providing oxygen and forming the foundation of food chains. Understanding how it works helps us appreciate the essential role plants play in maintaining the balance of our environment.

contoh teks explanation

How Snow is Made?

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