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Serga [27]
3 years ago
10

True or False? The earth's magnetic poles coincide with its geographic poles.

Biology
2 answers:
Studentka2010 [4]3 years ago
5 0

Answer: False

Explanation:

Earth's geographic and magnetic poles are not exactly aligned because they arise from different mechanisms. Earth's magnetic field is caused by circulating currents of liquid iron in the outer core. Furthermore, earth's magnetic poles are constantly changing location relative to earth's geographic poles

aleksandr82 [10.1K]3 years ago
3 0

Answer:

False

Explanation:

Earth's magnetic poles are not aligned because they arise from different mechanisms.

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Before winter animals that hibernate often prepare by eating foods high in fat. How is this behavior helpful?
bearhunter [10]
During hibernation, the animals don't eat anything.....So, when they are hibernating, those animals can get energy by burning the the stored fat from the fatty food and can survive until they wake from hibernation

3 0
3 years ago
Mutation is an important mechanism for evolutionary change. Which type of mutations contribute to evolution?
rodikova [14]
Adaptations are the result of evolution in different living organisms. This process occurs amazingly through gene mutation but it takes a very long period in time. Adaptation processes occur to help species survive and thrive in the ecological balance of life. Structural adaptations are physical features of an organism that adapted through time. An example of this are the bills of a bird and the fur of bears that they generally need for their survival; birds for hunting, and bears to protect them from low climate areas.
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Functional or Behavioral adaptations refer to particular things that an organism or organisms do to survive. In the example above, behavioral adaptations that birds do is through certain bird calls and migration, while bears hunt during warmer seasons and hibernate during winter season. </span>
5 0
3 years ago
4. What is the mass of N2H4 gas in a 350.0 mL container at 50.0 °C, if the pressure of the gas is
vovangra [49]

Answer:

0.36g

Explanation:

Given parameters and conversion to standard unit

 To solve this problem we must assume ideality

Volume of N₂H₄  =  350mL  = 0.35dm³

Temperature of container  = 50°C  = 50 + 273  = 323K

Pressure  = 885torr;

               760torr  = 1atm

               885torr  = \frac{760}{885}   = 0.86atm

Unknown:

Mass of the compound  = ?

Solution:

The mass of the compound can be derived using the expression below;

         Mass = number of moles x molar mass

molar mass of N₂H₄ = 2(14) + 4(1)  = 32g/mol

To find the number of moles;

       PV  = nRT

          n  = \frac{PV}{RT}

P is the pressure

V is the volume

R is the gas constant = 0.082atmdm³mol⁻¹K⁻¹

T is the temperature

         n  = \frac{0.86 x 0.35}{0.082 x 323}   = 0.01mole

So,

    Mass  = 0.01 x 32  = 0.36g

5 0
2 years ago
What is a scotobacteria
KatRina [158]
Commonly called the enterics due to the fact that they inhabit the intestinal tracts of humans and other animals.
6 0
3 years ago
Read 2 more answers
An experiment testing the hypothesis that nitrogen markers shoot farther than carbon dioxide markers resulted in conflicting tes
Natasha_Volkova [10]

Answer:

They should think of an alternative explanation for their results.

Explanation:

The next step that the scientists should take is to interpret why their hypothesis went wrong. The researchers should look for patterns in their observations and provide an alternative explanation for the results which occurred. Based on the results and their understandings, they should further make another hypothesis and check for its authenticity.

In scientific researches, the results of a hypothesis generally do not get the expected results but this leads to new findings and discoveries.

3 0
3 years ago
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