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3 years ago

Which weathering process involves physical forces but not chemical

Biology

1 answer:

erica [24]3 years ago

7 0

Answer:

<h3>Mechanical weathering, also called physical weathering, breaks rock into smaller pieces. These smaller pieces are just like the bigger rock, just smaller. That means the rock has changed physically without changing its composition.</h3>

Explanation:

<h2>GIVE BRAINLIST </h2>

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What word is used to describe knowledge about the universe and the method of obtaining that knowledge?

Salsk061 [2.6K]

Science and the method is the scientific process.

Science is the pursuit of knowledge and discovery from and to describe the unknown.
<span>Scientific models, paradigms and theories are used widely by most scientist as to serve possible predictions, testing hypotheses, providing explicit answers and even saving human lives. These models are the simple paradigms that shapes and at the most provide clarity to the unknown. </span>

4 0

3 years ago

How are members of the genus Homo different physically from the Australopithecus?

statuscvo [17]

Answer:

D. all of the above

Explanation:

Australopithecus (first ape-man): Australopithecus is considered as the connecting link between apes and man as they shared the characteristics of both. The fossil records shows that they appeared around 5 million years ago. <em>Australopithecus africanus</em> was about 1.5 meters high and had human as well as ape like features. It was with bipedal locomotion, omnivorous in their diet and had erect posture. It had human like teeth with small canines and large chewing teeth. The brain was more like an ape with the brain capacity of about 500 cc similar to that of an ape. He lived in caves, had projected brow ridges with no chin. Its believed that <em>Australopithecus africanus</em> gave rise to <em>Homo habilis</em> about 2 million years ago.

The earliest species of Homo genus is <em>Homo habilis</em>. They were skill full man also called as handy man or the tool maker. He had erect posture with bipedal locomotion. The teeth were like modern man. He was skilled and made tools with stones. Slowly with evolution the prognathous face changed to orthognathous in cro magnon (<em>Homo sapiens fossilis</em>).

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3 years ago

1. How did dark matter affect the development of structures in the early universe?

-Dominant- [34]

Answer:

1. It seeded the development of galaxies

2. The percentage of dark matter has shrunk in scientists' estimates since the 1980s

The percentage of unknown material has grown in scientists' estimates since the 1970%

3. Supernovae that are moving away at an accelerating rate.

Explanation:

1. How did dark matter affect the development of structures in the early universe?

It seeded the development of galaxies.

It seeded the development of quasars.

It cooled pockets of gas to form nebulae.

it became part of black holes

2. How has scientific understanding about the composition of the universe changed over time? Select the two correct answers.

The percentage of dark matter has shrunk in scientists' estimates since the 1980s

The percentage of unknown material has grown in scientists' estimates since the 1970%

The percentage of ordinary matter has grown in scientists' estimates.

The percentage of dark energy has shrunk in scientists estimates

3. Which is evidence for the existence of dark energy?

Pulsars that seem to be moving closer at an accelerating rate.

Supernovae that are moving away at an accelerating rate.

Black holes that are expanding at a constant rate.

Galaxies that are rotating at a constant rate.

<u><em>Please don't use these answer's to cheat they are to help only.</em></u>

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3 years ago

Match the signs of development with the appropriate trimester.

Gnom [1K]

Answer:

1st trimester-

The heart beats for the first time.

2nd trimester-

Fingerprints have developed

The fetus can hear and see.

The sex can be determined

Fat begins to develop

The fetus starts to move

3rd trimester-

Nerve cells have developed

Explanation:

The ones in bold means that they started in that trimester and continues into the next trimester.

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3 years ago

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AlexFokin [52]

Answer:

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3 years ago

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