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Alla [95]
3 years ago
15

Kayla is learning about ecology and made a study chart. Which headings best complete the chart? A: X: Abiotic Y: Biotic B: X: Bi

otic Y: Abiotic C: X: Niche Y: Habitat D: X: Habitat Y: Niche
Geography
1 answer:
Ronch [10]3 years ago
3 0

Answer: The answer is C and pleasee do me brainlylist last one needed and also helped this helped.

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2. A 260 em cylinder container was used to collect an undisturbed soil sample. The container and soil weighed 403 g when dried.
sineoko [7]

Answer:

The Bulk density = 1.3 g/cm³

the porosity of the sample is 132 cm³

Explanation:

Given:

Volume of cylinder = 260 cm³

Mass of container and the soil = 403 g

Mass of the empty container = 65 g

Thus,

The mass of the soil is = 403 - 65 = 338 g  

Now,

The Bulk density = \frac{\textup{Mass}}{\textup{Volume}}

or

The Bulk density = \frac{\textup{338 g}}{\textup{260}}

or

The Bulk density = 1.3 g/cm³

also,

average particle density for mineral soil is usually given as 2.65 g/cm³

i.e the air present in the given soil sample has reduced its density from 2.65 g/cm³ to 1.3 g/cm³

The mass of the whole sample = Volume × Density

= 260 × 2.65

= 689 gm

but,

The actual mass of the dry sample = 338 g

thus,

Mass of air in the sample = 689 - 338 = 351 g

Therefore,

the volume of 351 g soil = \frac{\textup{mass defect of soil}}{\textup{density of soil}}

=  \frac{\textup{351}}{\textup{2.65}}

= 132.45 cm³

so the porosity of the sample is 132 cm³

4 0
4 years ago
What major areas of Africa are almost void of human life on the following continents.
katrin [286]

Answer:

ethiopian highlands, kalahari deserts

5 0
4 years ago
Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air tempe
Aleks [24]

Freezing rain is the type of precipitation would most likely form when the surface air temperature is slightly below freezing,

<h3>What is Precipitation?</h3>

This can be defined as any product of the condensation of atmospheric water vapor which falls from clouds as a result of influence of gravitational pull.

Freezing rain is made up of liquid droplets when air temperature is slightly below freezing and the air temperature increases as you move upward.

Read more about Freezing rain here brainly.com/question/3978566

8 0
3 years ago
Precipitation is most prevalent within which latitude belts?
Sidana [21]

Descending air dominates in the subtropics (20° to 30° North and South latitude) and the poles. The global distribution of precipitation shows that the wettest areas on Earth are in the "rising air" zones, while the driest areas (subtropical deserts and the even drier polar areas) are in the "descending air" belts.

3 0
3 years ago
What region has the most densely populated areas?
pishuonlain [190]

Answer:

middle east

Explanation:

8 0
3 years ago
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