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Angelina_Jolie [31]
3 years ago
12

Which factor is most likely to have contributed to the high fertility rate

Biology
2 answers:
tiny-mole [99]3 years ago
8 0
A few are intention to have children, very high gender equality and religiosity (there’s more just google them)
VARVARA [1.3K]3 years ago
8 0

Answer: High fertility rate of what?

Don't you have a picture or like an actual problem if not I can't help.

Explanation:

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What is the electrical current passing through this ammeter?1
VMariaS [17]
Answer 1: 
Diagram is missing in question. Same is attached below.
Position of needle depicts amount of current flowing through the circuit. From the diagram, it can be seen that deflection needle is in between 8 amperes and 9 amperes. This signifies that, current is more than 8 amperes, but less than 9 amperes. Hence correct answer is option B: 8.5 amperes.


Answer 2: 
Diagram is missing in question. Same is attached below.
A wavelength is the distance between two successive troughs or two successive crests of the wave. Energy, frequency and wavelength of electromagnetic wavelengths are dependent on each other. In present case, X is a true measurement of the wavelenght. Hence, correct answer is option B: X.

Answer 3: 
Diagram is missing in question. Same is attached below.
Magnetic field strength is maximum where the magnetic field density is maximum. From the diagram, it can be seen that, in the region around both north pole and south pole, magnetic field density of identical, as well as very high. Hence, correct answer is option C: Around both poles.


Answer 4: 
<span>Alexandra was preparing to go on a hike in the woods. She gathered the equipment she would need and placed it on the counter. By chance, she placed her compass near an electrical outlet. Although the compass was not moving, the compass needle turned because the electrical current in the outlet produced a magnetic field. 
Reason: </span> When an electric current flows through a circuit, it generates the magnetic field around it. Due to this, the needle of compass got deflected, since it was in vicinity of magnetic field that was generated upon passage of electric current.


Answer 5: 
Diagram is missing in question. Same is attached below.
Correct answer is option B: Using the same number of turns of wire for each electromagnet. This is because, in order to study effect nails in the core of an electromagnet, it would be practical to use same number of batteries and same number of turns of wires in all the experiments. Thus, the variation in magnetism would be solely because of nails present in electromagnet.

Answer 6:
Ms. Markas takes a Thermos bottle filled with hot coffee to work each day. The thermos bottle keeps the coffee hot by slowing heat transfer from the inside to the outside of the container. This is because, thermos acts as in isolated system. An isolated system is one  which does not exchange heat as well as matter with surrounding. Due to this, coffee remains hot for long time.


Answer 7:
Correct answer: Option C-Black T-shirt
Reason: The radiation that is absorbed by the compound is dependent on the energy level separation between different electronic energy level. In energy level separation lies in visible region of electromagnetic radiation, then compound is colored. In case of black colour compounds, it absorbs light of all possible wavelenghts.

Answer 8: 
Diagram is missing in question. Same is attached below.
Correct answer: option B i.e. have a greater frequency than short wavelengths.
Reason:
We know that, E = hv = hc/∧
where, v = frequency of electromagnetic radiation
∧ = wavelenght.

From above equation, it can be seen that frequency and wavelenght have inverse relation. 
Therefore, long wavelengths have a greater frequency than short wavelengths.


Answer 9: 
 Refractive index is  the ratio of the velocity of light in a vacuum to its velocity in a specified medium. In present case, medium used is glass. The best way to determine a glass block's index of refraction is using Snell's Law.

According to Snell's Law, refractive index = \frac{sinQ1}{snQ2}
where, Q1 = angle of incident ray
Q2 = angle of refracted ray. 


Answer 10: 
Joseph studied whether different materials can block certain electromagnetic waves by testing television reception in different parts of the house. At each part of the house, Joseph used a different antenna. The experiment could have been improved by using the same antenna during each trial. Because, currently Joseph has two variable i.e. materials and antenna. This will complicate the experiments, as it would be difficult for Joseph to identify the material  that would be best suited for blocking certain electromagnetic waves. On other hand, if Joseph has used same antenna, there would have been only one variable i.e. materials. 

7 0
3 years ago
Why are there craters on the surface of the moon?(1 point)
Nataly [62]

Answer:

Craters resulted when meteoroids crashed into the surface of the moon.

Explanation:

6 0
3 years ago
What assessment finding should a nurse expect to note in a child with chronic hypoxia?
AleksandrR [38]
Chronic tissue hypoxia in children can be observed in patients who have history of tetralogy of Fallot, which is a condition of congenital heart disease that has abnormalities occurring simultaneously.  Skin color changes, tachycardia, rapid breathing, wheezing, confusion, sweating, and coughing are also seen commonly in chronic hypoxia patients and this should be a hint in assessing the condition of the patient.
8 0
3 years ago
Which of the following statements is an inference?
larisa [96]

Hello.

The answer is: It is warm outside because the sun is shining.

Inferences use  reasoning, moving from premises to logical consequences. The third option is correct because there is a reason the other options have no reasons on why.

Have a nice day

5 0
3 years ago
Read 2 more answers
Many people believe that vitamins and minerals are essentially the same type of nutrient but they are not: one is an organic mol
Minchanka [31]

Answer:

The correct statements are listed below.

Explanation:

Vitamins are organic and minerals are inorganic.

Organic compounds comes from living things.Vitamins generally exist as organic compounds for example all the vitamin such as vitamin A, Thiamine,riboflavin,biotin,pyridoxin,vitamin c,vitamin E, vitamin K exist as organic compounds.

On the other hand minerals are found in inorganic form for example nitrogen is found as nitrate and nitrite,phosphorus is found as phosphate group,phosphoric acid.

3 0
3 years ago
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