"The Rich Ocean" PPT courseware 2

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"The Rich Ocean" PPT courseware 2

Why does the singer love the sea so much?

The sea is a rich place and an ocean of life.

It contains biological resources, mineral resources, water resources, energy resources, space resources and environmental resources.

The ocean is a huge treasure house of resources

biological resources

Marine life China's marine life species account for about 10% of the world's total marine life species. According to the latest survey data, there are more than 1,580 species of marine life distributed on my country's tidal flats. Among them, molluscs (what we usually call shellfish) are the most numerous, with 513 species, followed by seaweeds with 358 species, crustaceans (mainly what we usually call shrimps and crabs) with 308 species, and other groups with very few species. The number of species of organisms on my country's coastal tidal flats, like those in the sea, also gradually increases from north to south. 20,278 species of marine life have been recorded in waters under China’s jurisdiction. These marine creatures belong to 5 biological kingdoms and 44 biological phyla. Among them, the animal kingdom has the most species (12,794 species), and the prokaryotes kingdom has the least species (229 species).

Luoping discovers rare biota fossils in the world

Among the vertebrates discovered so far in the Luoping Biota, fish are the most prosperous, and most of the fish fossils are new genera and species. The fossils are mostly distributed along the layers, and the specimens are beautifully preserved. Some microstructures and key parts are intact. For example, the fins, scales, teeth, and subtle patterns on the body surface of the fish fossils are clearly visible. The fossil abundance is extremely high, and the burial positions are diverse. Specimens can be seen in visual, ventral and dorsal views, and the individuals at different growth stages are relatively complete. Based on the preservation shape and preservation status, it can be preliminarily judged that they were buried in situ; at the same time, a large number of relatively well-preserved marine reptile fossils were also discovered. Rich invertebrate fossil genera and species, such as crinoids, shrimps, bivalves, gastropods and unidentified arthropods, are ideal materials for studying taphonomy and paleoecology.

mineral resources

① Placer deposits mainly originate from rock and mineral debris on land, which are transported and sorted by rivers, seawater (including ocean currents and tides), glaciers and wind, and are finally deposited and enriched in the most suitable areas of the seashore or shelf area.

② Seabed authigenic minerals, natural minerals generated in the ocean by chemical, biological and hydrothermal processes, can be formed directly or after enrichment. Such as apatite, glauconite, barite, seafloor manganese nodules and seafloor polymetallic hydrothermal minerals (mainly zinc and copper);

③The minerals in seabed consolidated rocks are mostly extensions of onshore mineral deposits to the sea, such as seabed oil and gas resources, sulfur ores and coal, etc.

The ocean's mineral resources are diverse and abundant.

seawater resources

Think about what verses are related to "sea" in ancient poems and see who has accumulated rich ancient poems.

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"The Rich Ocean" PPT courseware 3:

"The Rich Ocean" PPT courseware 3 Self-study tips (completed through group cooperation): (1) Combined with the third natural paragraph of the text, talk about the process of the origin of life (find the key words), and talk about the role of the ocean in this process role. (2) Based on the text, talk about where you can...

"The Rich Ocean" PPT courseware:

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Update Time: 2024-09-09

This template belongs to Chinese courseware Version A fifth grade Chinese language volume 1 industry PPT template

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