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Leni [432]
3 years ago
8

Ocean Currents: List two ways currents affect life on earth.

Physics
2 answers:
lions [1.4K]3 years ago
7 0
First , ocean currents are actually big convection currents moving heat around. Second, ocean currents moves food and nutrients from deeper water in a process called upwelling.
-BARSIC- [3]3 years ago
4 0

Answer:

The ocean currents affect life on earth in two possible ways-

  • Firstly, the ocean water current carries the warm current from the equatorial region towards the poles and brings back cold water from the pole to the equator. During this journey of heat transportation, it causes various types of weather and climatic conditions, that affect the lives existing on earth. In simple words, the ocean currents are responsible for controlling the global climatic condition.
  • The upper-ocean water is relatively warmer and denser in nature compared to the deeper and denser colder water. This colder deep water in some areas under certain conditions rises up to the surface replacing the warm current. This process is known as the upwelling of the ocean current. This results in carrying the essential mineral nutrients to the upper layer, which are very useful for the marine organism. It thus supplies a good amount of valuable minerals to these organisms, thereby enhancing the biological productivity in the ocean.
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What is the frequency of radiation whose wavelength is 0.80 nm ? express the frequency in inverse seconds to three significant d
Mashcka [7]
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f= \frac{c}{\lambda}

Since the wavelength of the radiation in the problem is \lambda= 0.80 nm = 0.80 \cdot 10^{-9} m, by substituting numbers in the formula we  can get the frequency:
f= \frac{3 \cdot 10^8 m/s}{0.80 \cdot 10^{-9} m} =3.75 \cdot 10^{17} s^{-1}
5 0
3 years ago
A solution is prepared by dissolving 49.3 g of KBr in enough water to form 473 mL of solution. Calculate the mass % of KBr in th
son4ous [18]

Answer:

9.31%

Explanation:

We are given that

Mass of KBr=49.3 g

Volume of solution=473 mL

Density of solution =1.12g/mL

We have to find the mass% of KBr.

Mass =volume\times density

Using the formula

Mass of solution=1.12\times 473=529.76 g

Mass % of KBr=\frac{mass\;of\;KBr}{Total\;mass\;of\;solution}\times 100

Mass % of KBr=\frac{49.3}{529.76}\times 100

Mass % of KBr=9.31%

Hence, the mass% of KBr=9.31%

7 0
3 years ago
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AlladinOne [14]

Answer:

B. chemical only.

Explanation:

In the process of respiration which is a chemical process where organic compound is released. In this process exergonic reaction takes place in which compound changes into different ones.

Following are the two types of respiration:-

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2] Anaerobic respiration:- In this type of respiration oxygen requirement is less and energy released is also less.

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