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Alex17521 [72]
3 years ago
7

Which characteristic of the outer core makes it unique among the other layers of Earth?

Biology
2 answers:
VladimirAG [237]3 years ago
7 0
D. The outer core is the only layer that is composed of liquid metal, making it responsible for Earth’s magnetic field.
ollegr [7]3 years ago
4 0

Answer:

The outer core is the third layer of the Earth. It is the only liquid layer, and is mainly made up of the metals iron and nickel, as well as small amounts of other substances. ... These powerful currents cause lines of invisible force to stretch around the Earth and thousands of miles into space, creating a magnetic field.

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Which statement about biomes is true?
aniked [119]

Answer:

Biomes are determined by climate zones.

Explanation:

Because the makeup of a biome is dependent on its climate, biomes are often regarded as a synonymous with climate zones.

6 0
2 years ago
As evidenced in the graph, the national average CO concentrations have decreased substantially over the years. All BUT ONE tacti
Gekata [30.6K]

Answer:

Explanation:

Carbon monoxide (CO) is a colourless, non-irritant, odourless and tasteless toxic gas. It is produced by the incomplete combustion of carbonaceous fuels such as wood, petrol, coal, natural gas and kerosene. Its molecular weight is 28.01 g/mol, melting point −205.1 °C, boiling point (at 760 mmHg) −191.5 °C (−312.7 °F), density 1.250 kg/m3 at 0 °C and 1 atm and 1.145 kg/m3 at 25 °C and 1 atm, and relative density (air = 1) 0.967 (1,2). Its solubility in water at 1 atm is 3.54 ml/100 ml at 0 °C, 2.14 ml/100 ml at 25 °C and 1.83 ml/100 ml at 37 °C.

The molecular weight of carbon monoxide is similar to that of air (28.01 vs approximately 29). It mixes freely with air in any proportion and moves with air via bulk transport. It is combustible, may serve as a fuel source and can form explosive mixtures with air. It reacts vigorously with oxygen, acetylene, chlorine, fluorine and nitrous oxide. Carbon monoxide is not detectable by humans either by sight, taste or smell. It is only slightly soluble in water, blood serum and plasma; in the human body, it reacts with haemoglobin to form carboxyhemoglobin (COHb).

The relationship of carbon monoxide exposure and the COHb concentration in blood can be modelled using the differential Coburn-Forster-Kane equation (3), which provides a good approximation to the COHb level at a steady level of inhaled exogenous carbon monoxide.

Conversion factors

At 760 mmHg and 20 °C, 1ppm = 1.165 mg/m3 and 1 mg/m3 = 0.858 ppm; at 25 °C, 1 ppm = 1.145 mg/m3 and 1 mg/m3 = 0.873 ppm.

8 0
3 years ago
Read 2 more answers
Which of the following is a protective aspect of genetically engineered food crops for the environment?
Gemiola [76]
Provides the crop with protection from insects and parasites
6 0
3 years ago
True or false: nutrients are used to break down oxygen and water to release glucose and carbon dioxide
Arturiano [62]

Answer: it is False

Explanation: because nutrients are not used to break down oxygen and water

But these can be broken down in processes such as PHOTOSYNTHESIS ND CELLULAR RESPIRATION.

HOPE THIS HELPS!!!!! NEED MORE EXPLANATION COMMENT IN THE COMMENT SECTION

6 0
2 years ago
A strand of DNA in a skin cell contains the bases:
LenKa [72]
I think the correct answer from the choices listed above is option 1. The statement that would describe this insertion would be that a new base had been inserted. As you can see, G is inserted between G and C. Hope this answers the question. Have a nice day.
6 0
3 years ago
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