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shusha [124]
3 years ago
14

Obsidians glassy texture indicates that it formed

Biology
1 answer:
OleMash [197]3 years ago
3 0

Answer:

on the surface rapidly

Explanation:

Obsidian glassy texture indicates that the rock formed on the surface rapidly.

Like every other magma, the condition of the environment determines how the magma cools and solidifies.

  • When magma cools rapidly, nucleation centers will be difficult to come- by ..
  • At nucleation centers, minerals aggregates and grows to form different grain sizes.
  • When rapid cooling occurs, not enough time is given for the aggregation around the nucleus.
  • This leaves a rock mass that is finely grained.
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Which ecosystem service would suffer from the opening of a mineral mine along a small mountain range?
andreyandreev [35.5K]

Answer:

D. Supporting

Explanation:

Ecosystem services include provisioning, regulating, culture and supporting services.

Opening of a mineral mine along a small mountain range will affect the supporting services of ecosystem because supporting services deals with soil formation, provision of habitat and nutrition cycle.

Opening of mineral mine will destroy the tosoil, landscape, forests and wildlife of mountain area which affect the supporting services such as habitat and soil formation.

Hence, the correct answer is "D. supporting".

5 0
2 years ago
What is a habitat? <br> A) an area of land <br> B) a community <br> C) a niche <br> D) a population
Alborosie

Answer:

c

Explanation:

A habitat defines the interaction of organisms with the other factors, which can be living or non-living, while niche describes how that specific organism is linked with its physical and biological environment. Habitat is the part of the ecosystem, while niche plays an important role in the formation of an ecosystem.

7 0
3 years ago
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Which is the main light-absorbing pigment for photosynthesis?
Nutka1998 [239]

Answer:

<h2><em><u>Chlorophyll</u></em></h2>

Explanation:

<u>Chlorophyll, the primary pigment used in photosynthesis</u>, <em>reflects green light and absorbs red and blue light most strongly</em>.

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.

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What are three types of homologies that can be seen in organisms? Give example of each homologous?
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Answer:

1. Iterative homology: e.g. antenna and leg of fiddler crab

2. Ontogenetic homology: e.g. radular teeth of veliger, feathers of chicken and hen

3. Di-polymorphic homology: e.g. white and brown feathers of hen races, chelae of male and female of fiddler crabs

4. Supraspecific: e.g. chelae of fiddler crab, chelae of lobster, feathers of hen and pheasant

Explanation:

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Answer:

It looks like a large rock with a yellowish color, and there are multiple smaller rocks inside the outer core.

Explanation:

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