How does sand silt and Clay affect soil nutrients and plants

1 answer:

6 0

Sand is granular and coarse meaning that water and nutrients can flow through it quite easily. Clay on the other hand has very fine particles that cling together to form a waterproof substance which traps/ stops any nutrients or water from moving down. Clay's also quite difficult for plants to get their roots into. Silt has a texture between clay and sand, meaning that it is the ideal substance as it allows the best water and nutrition movement in the soil. Most plants will grow best in silt, but there are some plants who are more adapted to living in sand (e.g. Marram grass) or clay.

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What is the main function of the circulatory system in multicellular organisims. a. to transport materials throughout the body.

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Answer:

The main function of the circulatory system is a To transport material throughout the body.

Explanation:

Blood in an important component of circulatory system.Blood contain Red blood cell that in turn contain hemoglobin which helps in the transport of oxygen and carbon dioxide to and from various body tissue.

The circulatory system also helps in the transport of nutrients such as glucose to various parts of our body such as heart,muscle,brain etc.The glucose molecules are utilized by those organs to perform their physiological functions.

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When it was announced that the offshore areas would be opened up, the government also said that extensive studies would need to

Sunny_sXe [5.5K]

Answer:

Explanation:

Feasibilities studies-it analyzes a project to see if its possible technically, legally and financially.

Technical feasibility tells about if all the tools and equipment are available for the construction while financial talks of the financial ability.

Survey- They area of land where the offshore will be constructed will be surveyed and other surrounding environment to know the existing feature in such area of land that can pose threat to the offshore being constructed. This includes lives and houses built around the off shore to know how save their live is when the off shore built in such place.

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Evidence suggests that Homo erectus obtained food mainly through:

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Answer:

C. Scavenging of dead animals and gathering of plants (just as Homo <em>habilis</em> had done), and perhaps the hunting of smaller animals

Explanation:

Homo <em>erectus</em> (erect man): Homo erectus is believed to be appeared about 1.5 million years ago. It was in the middle Pleistocene age when they evolved from homo habilis. Homo erectus probably ate meat, was around 1.5-1.8 meters tall and males were probably larger than females. As the name suggests they has erect posture. His skull was flatter than that of modern man and he had protruding jaws. Other features includes projecting brow ridges, small canines and large molar teeth. Their cranial capacity was 900 cc. Cranium was dome shaped to accommodate the large brain. Homo erectus was omnivorous and he made various tools using stones and bones. He made use of fire for hunting, defense and cooking. Homo erectus inculdes three fossils: Java Ape-man, Peking man and Heidelberg man.

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