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Animal classification is a method of organising and categorising various animal species based on their characteristics and evolutionary relationships. It helps scientists in studying and comprehending the world’s vast diversity of animals. Animals are classified using a hierarchical system known as taxonomy, which consists of different ranks or levels.<div>

From broadest to most specific, the taxonomic ranks are as follows:

Kingdom: Animals are members of the kingdom Animalia, which includes all multicellular organisms

Phylum: The second rank. Animals are further classified into phyla based on their body structure and organisation.

Class. Animals are classified into various classes within each phylum based on shared characteristics. Mammalia, for example, are warm-blooded vertebrates with mammary glands that give birth to live young.

Orders – these are created from classes. Each order contains animals that have traits in common and are more closely related. </div>

Family- Animals are organised into families within each order. Families are groups of animals that share characteristics. For example, the family Felidae of the order Carnivora includes domestic cats and other wild feline species.

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Example of few species

1. Lion

   • Kingdom: Animalia
   • Phylum: Chordata
   • Class: Mammalia
   • Order: Carnivora
   • Family: Felidae

2. Housefly

   • Kingdom: Animalia
   • Phylum: Arthropoda
   • Class: Insecta
   • Order: Diptera
   • Family: Muscidae

3. Green Sea Turtle

   • Kingdom: Animalia
   • Phylum: Chordata
   • Class: Reptilia
   • Order: Testudines
   • Family: Cheloniidae

4. Red Fox

   • Kingdom: Animalia
   • Phylum: Chordata
   • Class: Mammalia
   • Order: Carnivora
   • Family: Canidae

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Biogas is a type of gas that is produced by the decomposition of organic matter such as food scraps, animal manure, or plant materials, decomposes naturally. This decomposition process occurs in an oxygen-free environment, such as a biogas digester or a landfill. The organic matter is broken down by bacteria and other microorganisms, which release gases as byproducts. It is mainly composed of two gases: methane (CH4) and carbon dioxide (CO2). Methane is the primary component of biogas,that is a flammable gas that can be burned to produce heat or electricity. while carbon dioxide is a secondary component that is less flammable.

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Weeds are unwanted plants that grow in gardens, farms, and other places where they are not wanted. They compete for resources such as water, sunlight, and nutrients with other plants, which can have a negative impact on crop growth and productivity.

Weed control is critical for maintaining plant health and productivity.

Weed control methods include:

1. Manual methods- this involves physically removing weeds by hand with tools such as a garden hoe or trowel. It is effective for small-scale weed control or in areas where chemical use is prohibited.

2. Herbicides- Weeds can be controlled using chemical methods such as herbicides or weed killers. Selective herbicides target specific types of weeds without harming desirable plants.

3. Biological control- Certain insects, animals feed on specific types of weeds and can be used to control them naturally.

Some measures such as regular monitoring, timely removal of weeds before they produce seeds, maintaining healthy soil, and encouraging proper plant spacing can also help to reduce weed growth.