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svetlana [45]
3 years ago
7

Earth’s magnetism is related to the circulation of molten material within Earth’s core.

Biology
2 answers:
Aloiza [94]3 years ago
6 0
True. Hope this helped! :)
Murrr4er [49]3 years ago
3 0

Answer:

True

Explanation:

The core of the earth consists of molten iron enriched with nickel. This molten iron is mainly responsible for the generation of earths magnetic field. The motion of convection currents creates a geodynamo that produces alternating magnetic field .

The molten core rotates because of rotation of earth on its axis due to which the magnetic poles reverses geographically.

Hence, the given statement is true.

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What types of sensory endings convey information to the brain via spinal cord tracts?
lesya [120]
Nerve endings send information to nerves that run up the spine to the brain.
6 0
4 years ago
In most cases, the two major climatic factors affecting the distribution of organisms in terrestrial ecosystems are _____. In mo
Anna35 [415]

Answer:

Water and temperature

Explanation:

Water and temperature are the two most important factors that regulate the distribution of organisms in terrestrial habitats. Water is required for survival by living beings. The availability of water is limited in many habitats such as desert habitats. In such land habitats with water scarcity, the organisms adapted to withstand the limited water availability are found.

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6 0
4 years ago
Oxygen-16 has 8 protons. How many neutrons does it have?
LuckyWell [14K]
It has Eight Neutrons as well
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7 0
4 years ago
!Please help me!
yulyashka [42]

Answer is at the very end

Explanation:

Given parameters:

Mass of the asteroid = 10 x 10⁹kg

Distance between the asteroid = 850km

Unknown:

Force = ?

Solution:

We can predict the outcome of this reduction in distance between the two masses using the newton's law of universal gravitation.

The law states that "the gravitational force of attraction between two masses is directly proportional to the product of their masses and inversely proportional to the square of the distances between them".

 Mathematically, we have;

          F =

F is the gravitational force

G is the universal gravitational constant = 6.67 x 10⁻¹¹Nm²kg⁻²

m is the mass of the body

r is the distance between them.

 From this, we know that as the separation increases, the force of gravitation will reduce since the mass is constant.

The distance between the two asteroids decreased from 1000km to 850km, this will increase the force of attraction between them and we expect the force to be higher than 6700N.

 At 1000Km, force = 6700N,

 since as the distance reduces the force increases, we expect the force to be about 9200N.

Let us verify this by plugging the values into the equation:

       F =

      F = 9200N

7 0
4 years ago
The idea that pain signals must passthrough a type of "doorway" in the spinal cord isreferred to as the ______________.
MrMuchimi

Answer:

The correct answer is - option D.  gate- control theory of pain.

Explanation:

Gate control theory of pain suggests that non painful stimulus that inhibits or closes the the gates for the stimulus of the pain. This mechanism helps in the prevention  of of the pain sensation to travel to the CNS. It is also refereed as the doorway in the spinal cord that is passed from the signals.

Thus, the correct answer is - option D. gate- control theory of pain.

5 0
4 years ago
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