Why do some scientests say a dinosaur might be an ancestor of a bird?

1 answer:

6 0

Because of the Pterodactyl's existence and that bird was apart of the dinosaur era so they had to be related in some way. Recently scientists found a bird that was similar to the pterodactyl so yes birds have dinosaur ancestors. But scientifically birds did not evolve from Pterodactyls because that animal race did not have feathers. They evolved from a group of dinosaurs.

Hope this helps

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What rocks forms when limestone undergoes metamorphism?

solniwko [45]

Answer:

Marble is the correct answer.

Explanation:

Marble rocks forms when limestone undergoes metamorphism.

Marble rock is formed from the limestones,when the limestone is influenced by heat and tremendous pressure it transforms in marble through a method called metamorphism.

During the metamorphism, limestone gets recrystallizes and result in the formation of interlocking carbonate mineral crystals that form the marble.

6 0

3 years ago

If a single family residence is constructed on the cleared lot what processes will control the surface runoff from the lot

zzz [600]

Answer:

As the region is deforested, the topography, gravity, soil permeability and terrain slope will control the runoff, as well as the intensity of the rain.

Explanation:

Runoff occurs when water flows over a soil that is saturated, that is, soaked. What controls the runoff efficiently is the native vegetation of the place, however, when this area is cleared, the soil is completely at the mercy of saturation, causing the runoff to be controlled by topography, gravity, permeability of the soil and the slope of the terrain, as well as the intensity of the rain.

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3 years ago

7. The two deserts that surround the Nile River in Egypt are: (select 2)

ddd [48]

Answer:

Sahara and White desert

Explanation:

the Sahara desert lies west of the River Nile and South from Mediterranean Sea to the border with Sudan

The White Desert is an area in the Sahara that lies west of the Nile River.

(im sorry this is all the information I can find because really the answers I keep seeing besides these is the Arabian and Libyan deserts. I hope this does help! Have a wonderful day everyone!)

5 0

3 years ago

Kristen is creating a model of a galaxy. On a piece of paper, she draws many dots to represent stars. In order to make her model

jok3333 [9.3K]

Along with the stars, Kristen shall also show effect of gas, dust and solar system in the galaxy.

<u>Explanation:</u>

Galaxy is a collection of various stars but these are bound to each other in a gravitational bound system. Along with the stars, the galaxy also consists of dust, gas and other kind of dark matter.

The solar systems are also consisted in the galaxy. According to the scientists, there are one hundred billion galaxies in the universe and all the galaxies consisting of a combination of all this.

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3 years ago

Where does the epicenter of an earthquake have to be in order for a tsunami to occur?

Korolek [52]

Mostly in the oceanic plate,or location which can cause the oceanic plate to crack,as the formation of a tsunami is caused by the displacement of a rock undersea,leading to violent waves that hit the shore as tsunami.

hope it helps!

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3 years ago