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FrozenT [24]
3 years ago
9

What makes one mineral harder than the other? Explain

Biology
2 answers:
Lana71 [14]3 years ago
5 0

Answer:The ones that are tightly bound together look different than do ones with looser bonds. For example, in the illustrations below, (A) shows the atomic structure of carbon in a diamond, and (B) is the carbon arrangement in graphite. (A) is more compact than (B), hence it is harder.

Explanation:Rocks are made of minerals, and different minerals have different crystal structures. The chemical bonds that hold atoms together in these minerals are stronger in some than in others, and the atoms themselves determine which bonds are stronger than others.

saveliy_v [14]3 years ago
4 0

Answer:

The hardness of a mineral is mainly controlled by the strength of the bonding between the atoms and partly by the size of the atoms. It is a measure of the resistance of the mineral to scratching, the Mohs scale is for natural minerals.

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The term gender refers to:
Tom [10]

Answer:

a. cultural categories related to the identities and roles of men and women

Explanation:

Gender can be defined as that which identifies and differentiates men and women, that is, male and female. According to the “traditional” definition of gender, it can be used as a synonym for “sex”, referring to what is proper to males as well as females. However, from the point of view of the social sciences and psychology, mainly, gender is understood as what socially differentiates people, taking into account the historical-cultural patterns attributed to men and women, so we can Consider that the letter A, is the answer to your question.

7 0
3 years ago
The desert and tundra are alike because they both have A) extreme daily temperature changes. B) large seasonal variation. C) lim
Ostrovityanka [42]
The desert and tundra are alike because they both have limited available water. 
4 0
3 years ago
Read 2 more answers
Describe the origin and fiber composition of (1) ventral and dorsal roots, (2) the spinal nerve proper, and (3) ventral and dors
Zigmanuir [339]

Answer:

A dorsal root (sensory or afferent) and a ventral root (motor or efferent) originate from the medulla. They unite near the intervertebral foramen, forming the spinal nerve. The nerves emerge from the intervertebral foramen, dividing into ventral and dorsal ramus.

Explanation:

The nerve is a set of nerve fibers perceptible to the naked eye and wrapped in connective tissue. They are made up of roots, trunks and nerve branches (some of them come together and form plexuses).The spinal nerve originate from the spinal cord in the form of 31 pairs: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal. They emerge from the spinal cord through two roots: dorsal roots, made up of sensory fibers that come from the sensory neurons of the spinal ganglion and that penetrate the spinal cord through the posterolateral  and ventral root, made up of motor fibers, coming from the motor neurons of the anterior horn and visceral of the lateral horn of the gray matter of the spinal cord. This root exits the spinal cord through the anterolateral groove, then joins the posterior root to form the spinal nerve, which exits the vertebral canal through the corresponding intervertebral foramen.Each spinal nerve, after leaving the vertebral canal, emits two primary ramus: the dorsal ramus, contains somatic and visceral fibers that go to the skin and muscles of the back and the ventral ramus, which supplies the ventrolateral surface of the skin, body wall and extremities.

7 0
3 years ago
What is classification? Why is it necessary to classify animals and plants?​
DIA [1.3K]

Answer:

Explanation:

Scientists use Taxonomy, the science of classifying living things, in order to make sense of biodiversity and how living things are related. For example, the classification of species is important in light of a changing environment because it helps scientists keep track of endangered species and what new species were formed because of the environmental change.

7 0
3 years ago
The reduced coenzymes generated by the citric acid cycle donate electrons in a series of reactions called the electron transport
Julli [10]

The reduced coenzymes generated by the citric acid cycle donate electrons in a series of reactions called the electron transport chain. The answers are as;

a) 1. NADH and 7. FADH2

b) 6. O2

c) 3. NAD+, 1. H2O, 4. ATP and 8. FAD

Oxygen is the ultimate electron acceptor, and it combines with hydrogen ions to produce H2O. This process occurs at the conclusion of the electron transport process.

ATP molecules, which are carriers of energy, would be the final outcome of the oxidative phosphorylation process.

(a) NADH and FADH2 donate electrons to the electron transport chain.

(b) O2 is the final electron acceptor.

(c)  NAD+,  H2O,  ATP, and  FAD are the final products of the electron transport chain and oxidative phosphorylation.

You can also learn about oxidative phosphorylation from the following question:

brainly.com/question/29104155

#SPJ4

4 0
1 year ago
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