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yarga [219]
3 years ago
13

Besides providing food and lumber, some trees are valuable natural resources because they contain substances that help make ____

_. A. ore B. medicines C. petroleum D. silicon wafers
Physics
2 answers:
kondaur [170]3 years ago
6 0
Medicines would be your answer


antiseptic1488 [7]3 years ago
4 0

The correct answer is B. Medicines

Explanation:

Trees are valuable natural resources used to obtain food through edible fruits, roots, etc and also to obtain lumber that is used to build structures, furniture, among others. Besides this, trees are valuable because it is possible to obtain medicinal substances from these. For example, willow bark can be used to treat fever, and pain because the substance in it acts similarly to aspirin. This makes thousand of tree species to be used in the process of creating medicines. Thus, besides food and lumber trees provided substances that help make medicines.

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Rest and motion are relative terms why?​
krok68 [10]

Answer:

Rest and motion are the relative terms because they depend on the observer's frame of reference. So if two different observers are not at rest with respect to each other, then they too get different results when they observe the motion or rest of a body.

3 0
3 years ago
An electron is released a short distance above earth's surface. a second electron directly below it exerts an electrostatic forc
slamgirl [31]

The mass of an electron is 9.109 x 10⁻³¹ kg

The weight of the electron is (mass) x (g) =  8.926 x 10⁻³⁰ Newton

The charge on an electron is -1.602 x 10⁻¹⁹ Coulomb

The repelling force between the two electrons is (K · q₁ · q₂ / r²) =

(8.98755 x 10⁹ N-m²/C²) x (1.602 x 10⁻¹⁹ C)² / D²

In order for the bottom one to just exactly hold the top one up at a distance 'D', the repelling force has to be exactly equal to the weight of the upper electron.

8.926 x 10⁻³⁰ N = (8.98755 x 10⁹ N-m²/C²)·(1.602 x 10⁻¹⁹ C)² / D²

We have to solve THAT ugly mess for ' D '.

Clean up the units first:

Cancel the C² on the right side, then divide each side by Newton:

8.926 x 10⁻³⁰ = (8.98755 x 10⁹ m²) x (1.602 x 10⁻¹⁹)² / D²

Now, let's multiply both sides by (D² x 10²⁹) :

D² x 8.926 x 10⁻¹ = (8.98755 m²) x (1.602)²

Divide each side by (0.8926):

D² = (8.98755 x 1.602²) / (0.8926)  meter²

D² = 25.84 m²

Take the square root of each side:

<em>D = 5.08 meters</em>

I am shocked, impressed, and amazed !

Are you shocked, impressed, or amazed ?

3 0
3 years ago
4. How much time does it take for a student running at a speed of 5 m/s to cover a distance of 2,000 m?
Monica [59]

Answer:

6 Minutes 40 Seconds or 400 Seconds

Explanation:

Time to cover a distance of 5m = 1 Second

Time to cover a distance of 2000m = 2000÷5

= 400 Seconds

After converting 400 Seconds into minutes it will become 6 minutes 40 seconds.

Those who found this helpful please give me a Thanks to support me. So, I can explain other questions more clearly. If you don't want to mark me Brainliest don't mark. But, please give me a Thanks.

6 0
2 years ago
How many significant figures does the number 91010.0 have?
kirza4 [7]

Answer:

6 (six)

Explanation:

5 0
3 years ago
Read 2 more answers
Which is a form of precipitation?<br> A. Runoff<br> B. Rain<br> C. Gas<br> D. Evaporation
saw5 [17]

Answer:

D. Evaporation

Explanation:

Just did it made 100%

7 0
3 years ago
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