The answer is; B
Sometimes winds carry the sand of the beaches causing erosion. The fences act as breakers of this wind erosion. As wind tries to carry the sand, they encounter the fence and 'break'. Therefore, the sand is deposited along the fence forming a sand dune. These dunes also form protection from storm surges.
B. evolutionary succession
C. primary succession
D. secondary succession
Answer:
answer, I guess, is C.primary succession
A.The use of chemical fertilizers that are carried by runoff into rivers.
B.The logging of old-growth forests, which results in erosion.
C.The spraying of chemical herbicides that reduce carbon dioxide in the air.
D.The mining of fossil fuels, which requires digging underground tunnels
Answer:
C.The spraying of chemical herbicides that reduce carbon dioxide in the air.
Explanation:
The rapid growth of a microscopic marine alga in North Atlantic is a result of environmental changes such as the increase of carbon dioxide levels in water, a new study found.
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Answer:
Ammonites, , Brachiopod, Grapolithina,Trilobites and Nanofossils are examples of index fossils
Explanation:
Ammonites were common during the Mesozoic Era (245 to 65 mya), but were not found after the Cretaceous period. They went extinct during the K-T extinction (65 mya)
Brachiopods which are mollusk-like marine animals appeared during the Cambrian (540 to 500 mya). Some types of them still survive
Grapolithina which are widespread colonial marine hemichordates that also lived during the Cambrian period.
Nanofossils are microscopic fossils which are remains of calcareous nannoplankton, coccolithophores from various eras
Trilobites were common during the Paleozoic Era (540 to 245 mya); about half of the Paleozoic fossils are Trilobites. Trilobites evolved at the beginning of the Paleozoic Era and went extinct somewhere in the late Permian period which was 248 million years ago
This might be extra information but i hope it helps
The kingdoms that consist of both unicellular and multicellular organisms are the Protists and Fungi.
Kingdom may be defined as a type of taxonomic rank that is significantly composed of smaller groups called phyla. It is considered the second highest taxonomic rank, just below the domain.
Unicellular organisms are made up of only one cell while Multicellular organisms are made up of more than one cell. Protists and fungi are classified into eukaryotic cells which are complex and possess numerous cell organelles. Most of the protists are unicellular in nature such as Amoeba and Paramecium. Multicellular protists include diverse forms of algae and seaweed.
When it comes to fungi, most of them are multicellular such as mushrooms and molds. The unicellular forms of fungi are yeast.
Therefore, protists and fungi are the two kingdoms that consist of both unicellular and multicellular organisms.
To learn more about Kingdom Protists, refer to the link:
#SPJ2
Answer: Protists and fungi consists of this.