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asambeis [7]
3 years ago
7

What does the mantle melt into? a) Rock b) Magma

Biology
1 answer:
tekilochka [14]3 years ago
4 0
B magma hope this help
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What are charcteristics of lithosphere?
Gnesinka [82]

<u>Answer:</u>

Lithosphere: the name lithosphere comes  from the greek words lithos ,meaning rocky  and spheaerous ,meaning sphere.

The lithosphere is the moving part of the surface of earth planet.it it consist of the continental crust ,oceanic crust and the uper part of the mentle ,called asthenosphere .It is bounded by atmosphere from above and asthenosphere below.

<h3>charcteristics: </h3>

The uppermost part is crispy, and it is present where brittle deformation happens, like faults, and damage from earthquakes. The lower part is warmer ,things get hotter going towards the interior of the planet, and this is where ductile deformation happens, like folding of rocks. The movement is steered by convection in the mantle, which helps push some tectonic plates together, while separating others.

The lithosphere is very important because we humans live here, and we have to interact with it for survival . Movement of the lithosphere is essential because it provides us land to live on. Without tectonic uplift, erosion would have long since wiped out all dry land, and we would not be here.

<h3> </h3><h3></h3>
8 0
4 years ago
g Consider a series of metabolic events during fasting. Within a few days after a fast begins, nitrogen excretion accelerates to
Hoochie [10]

Answer:

. Identify the process that triggers the initial surge of nitrogen excretion,

The reason for this is because of the gluconeogenesis ,(in the liver and cortex of the kidney) which make up for the  reduction in glucose blood level, from rapid catabolism to glucose at the beginning of fasting, by breaking down protein to glucose in the liver. Therefore excess Nitrogen is produced as the byproducts of amino acids catabolism.

Physiologically the mammalian brain prefers the keto bodies supply from fatty acids catabolism from gluconeogenesis compare to protein. These water solube subtances cross the BBB to  reach the brain the CNS substituting for glucose. Thus as more fatty acids is converted to ketobodies at faster rate, the brain gets adapted to this, and therefore catabolism of amino acids drops, hence Nitrogen concentration in the blood drops.

However, with exhaustion of Glycogen and fatty acid, catabolims of amino acids resumes. therefore, more amino acids are broken down, and Nitrogen build up in the Urine for excretion.

Explanation:

4 0
3 years ago
The study of biogeography includes information about the location of______
Vinvika [58]
Your answer would be C, the study of biogeography includes information about the location of fossils and living organisms
5 0
4 years ago
Read 2 more answers
Which cells or organelles were the earliest contributors to increasing oxygen availability in the atmosphere? A. Chloroplasts B.
blondinia [14]

Answer:

A. Chloroplasts.

Explanation:

Chloroplasts are organelles found in leaves of green plants and they conduct photosynthesis. They contain chlorophyll pigment which captures sunlight and convert it to energy.

Photosynthesis is the process whereby green plants manufacture their food from carbon dioxide and water in the presence of sunlight and they release the oxygen.

So, in the presence of chloroplast, photosynthesis takes place and oxygen is released into the atmosphere.

8 0
4 years ago
To investigate whether roots exert a pushing force strong enough to cause water to move up the stems plants,my question is state
polet [3.4K]
The stem of the plant should be cut at least three to four inches above the surface level.
The glass capillary should be tightly fixed with the stem.
The initial water level and the final water level should be carefully noted.
The droplets on the leaves should be observed and conclude that these drops are not from transpiration. 
7 0
4 years ago
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