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kirill [66]
3 years ago
10

Explain what is meant by the Big Bang, and how to calculate the time when it happened

Biology
1 answer:
Lerok [7]3 years ago
3 0
The Big Bang Or Big Bang Theory is the theory scientists say how our universe started scientists say this occurred 13.7billion years ago
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How does wet and dry barometer work?? Thnx
tatiyna

Wet barometer - The tool works by measuring atmospheric pressure to predict incoming weather. Since the glass is only filled halfway with water, the other half is exposed to the atmosphere. When the outdoor atmospheric pressure rises, the pressure in the glass decreases, and causes the water to move down the spout.

Dry barometer - A Torricellian barometer (sometimes called a mercury barometer) is an inverted (upside-down) glass tube standing in a bath of mercury. Air pressure pushes down on the surface of the mercury, making some rise up the tube. The greater the air pressure, the higher the mercury rises.

I hope this helps!

6 0
3 years ago
What is the most likely reason that horses and mountain goats have hooves?
melisa1 [442]
<span>a. They have homologous structures because they have a common ancestor.

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8 0
3 years ago
Read 2 more answers
An air mass forms over the North Pole region describe what you think the temperature and humidity of this air mass will be like?
soldi70 [24.7K]

Answer: hope this helps :)

The motion of air mass motion is usually based upon the air flow in the upper atmosphere. As the jet stream changes intensity and position, it affects the motion and strength of air masses. Where air masses converge, they form boundaries called "fronts".

3-D view of a cold front.

Fronts are identified by change of temperature based upon their motion. With a cold front, a colder air mass is replacing a warmer air mass. A warm front is the opposite affect in that warm air replaces cold air. There is also a stationary front, which, as the name implies, means the boundary between two air masses does not move.

The motion of air masses also affects where a good portion of precipitation occurs. The air of cold air masses is more dense than warmer air masses. Therefore, as these cold air masses move, the dense air undercuts the warmer air masses forcing the warm air up and over the colder air causing it to rise into the atmosphere.

So, fronts just don't appear at the surface of the earth, they have a vertical structure or slope to them as well. Warm fronts typically have a gentle slope so the air rising along

6 0
2 years ago
Explain in detail how cotton plants can be genetically modified to produce the Bt poison.
zvonat [6]

Answer:

They're modified by adding genes that are encoded with toxin crystals.

Explanation:

More info:

1. The toxins are in the Cry group of endotoxins

2. It is activated by a high pH

3. It is used as a pesticide

8 0
3 years ago
Replication of DNA during mitosis ​
vaieri [72.5K]

Answer:

hope it helps you

Explanation:

This process involves replication of the cell's chromosomes, segregation of the copied DNA, and splitting of the parent cell's cytoplasm. The outcome of binary fission is two new cells that are identical to the original cell.

Explanation: In mitosis, the cell splits apart to form two identical, same cells. That means that it has the same DNA and number of chromosomes as the previous cell. So, mitosis's main function is literally DNA replication

4 0
3 years ago
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