What causes the patterns of convection cycles in the lithosphere? DETAIL ( 2 SENTENCES )

1 answer:

5 0

Oceanic lithosphere consists mainly of mafic crust and ultramafic mantle (peridotite) and is denser than continental lithosphere, for which the mantle is associated with crust made of felsic rocks. Oceanic lithosphere thickens as it ages and moves away from the mid-ocean ridge. This thickening occurs by conductive cooling, which converts hot asthenosphere into lithospheric mantle and causes the oceanic lithosphere to become increasingly thick and dense with age. In fact, oceanic lithosphere is a thermal boundary layer for the convection[9] in the mantle. The thickness of the mantle part of the oceanic lithosphere can be approximated as a thermal boundary layer that thickens as the square root of time.

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I need the answer someone help

fenix001 [56]

Answer:

The answer is A

Explanation:

Because each part of Earth does have its natural resources.

Not all the places have the exact same resources to make medicine for example they have to adapt to their surroundings and make the most out of it, or if they have the option they could import some ingredients for the medicine.

So basically The answer is option A each place has different kinds of resources and advantages.

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6 0

4 years ago

The endocrine system acts through chemical messengers called- -

3241004551 [841]

The best answer is D.

Hormones are chemical messengers secreted mostly into blood and also extracellular fluid by specialized tissue of the endocrine system and affect the functioning of other tissues or cells.

Most hormones circulate in blood and come in contact with essentially all cells, but a particular hormone will only affect a limited number of cells, which are termed as target cells to that hormone.

A target cell responds to a particular hormone because it bears receptors for that hormone.

For example the red blood cells have receptors for the hormone called insulin which is produced by the pancreas. The red cells are able to take in glucose when their receptors bind to insulin.

7 0

3 years ago

RNA is used in the process of translation to build proteins. Which of these correctly describes the role of the different types

navik [9.2K]

Answer:

A) rRNA makes up the ribosome.

B) tRNA carries amino acids to ribosome.

E) mRNA code is read to determine the sequence of amino acids in the protein.

Explanation:

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3 years ago

Explain the water cycle in a paragraph

stepan [7]

Answer:

Water cycle is also called hydrological cycle. In this cycle water moved continuously above the surface of the earth for the continuity of life. Water is evaporated from the sea and ocean in the process of evaporation. This water goes to the atmosphere and form clouds. These clouds moves to hilly areas and comes to the ground in the form of rainfall and snowfall etc. Some water is stored on the mountains in the form of snow and the remaining downward through streams.

7 0

3 years ago

The functional and structural unit of the kidneys is the:_______.

serg [7]

Answer: c. nephron

Explanation: The nephron is the functional unit of the kidney, which actively filters blood and generates urine. The nephron is made of the renal corpuscle and renal tubule. Cortical nephrons are located within the renal cortex, whilst juxtamedullary nephrons are observed inside the renal cortex near the renal medulla.

3 0

3 years ago