The theory of continental drift describes the movement of landmasses on Earth's surface Which of the following shows evidence of continental drift? (1 point) fossil evidence glacial deposits ☐ match up of landforms, rocks, and other resources all of the above none of the above

11 answers

The correct answer is "all of the above." Each of the listed options provides evidence for the theory of continental drift:

  1. Fossil evidence - Similar fossils found on different continents suggest that these landmasses were once joined.
  2. Glacial deposits - Glacial marks and deposits found in currently warm regions indicate that those continents were once located closer to the poles and connected.
  3. Match up of landforms, rocks, and other resources - Similar geological features and rock formations on different continents support the idea that they were once part of a single massive landmass.

Thus, "all of the above" is the best choice.

5 - (-4)

To solve the expression \(5 - (-4)\), you can simplify it as follows:

Subtracting a negative number is the same as adding its positive counterpart, so:

\[ 5 - (-4) = 5 + 4 \]

Now, perform the addition:

\[ 5 + 4 = 9 \]

Therefore, \(5 - (-4) = 9\).

(15, -2) / (-5, 2)

To perform the division of the two coordinate pairs \((15, -2)\) and \((-5, 2)\), we divide the corresponding components of the tuples.

The division is done component-wise:

\[ \left(\frac{15}{-5}, \frac{-2}{2}\right) \]

Now, we compute each component:

  1. For the first component: \[ \frac{15}{-5} = -3 \]

  2. For the second component: \[ \frac{-2}{2} = -1 \]

Thus, the result of \((15, -2) / (-5, 2)\) is:

\[ (-3, -1) \]

Fraction?

I apologize for the misunderstanding! If you want the division of the two coordinate pairs \((15, -2)\) and \((-5, 2)\) expressed as a fraction, we can interpret this as dividing each component as a fraction rather than producing a coordinate result.

So we would set it up as:

\[ \frac{(15, -2)}{(-5, 2)} = \left( \frac{15}{-5}, \frac{-2}{2} \right) \]

Calculating each fraction:

  1. For the first fraction: \[ \frac{15}{-5} = -3 \]

  2. For the second fraction: \[ \frac{-2}{2} = -1 \]

Therefore, we have two components, but they can also be expressed as the fractions:

  • The first component is \(-3\) (which can be written as \(\frac{-3}{1}\) if necessary).
  • The second component is \(-1\) (which can be written as \(\frac{-1}{1}\) if necessary).

So if you are looking for the fractional representation of the results, it remains \((-3, -1)\) or can be represented as:

\[ \left(\frac{-3}{1}, \frac{-1}{1}\right) \]

If you meant something else by "fraction," please clarify!

2 - (2)
-5 - 15

To simplify the expressions you've provided, we can solve them individually.

  1. For the first expression:
    \(2 - (2)\)
    This simplifies to:
    \(2 - 2 = 0\)

  2. For the second expression:
    \(-5 - 15\)
    This simplifies to:
    \(-5 - 15 = -20\)

So the results are:

  • \(2 - (2) = 0\)
  • \(-5 - 15 = -20\)
-5 - 15

To evaluate the expression \(-5 - 15\), you simply subtract \(15\) from \(-5\):

\[-5 - 15 = -20\]

Therefore, the result is \(-20\).