WORTH 40 POINTS HELLPPPP What class of element is Astatine (At)?

Which of the following is NOT an example of a chemical reaction

Charra [1.4K]

D water evaporating it is a physical change

8 0

3 years ago

Some areas of the Earth receive more solar radiation than others. Which of the following results from the Sun's uneven heating o

STatiana [176]

Some areas of the Earth receive more solar radiation than others and this Sun’s uneven heating of the Earth result in 

i. Climate

ii. Weather

iii. Ocean currents

Further Explanations:

Earth receives varied amount of solar radiation in its different parts. The situation is due to the orbicular shape of the Earth and inclination of the sun during different time of the year. We can see one such example that, during June sun is overheard Tropic of cancer and during September it is overhead Tropic of Capricorn. Because of the inclination,different regions of the Earth experience different climate at the same span of time. This unevenness results in the following phenomenon:

i. Climate:Climate is a continuing average weather condition of a place. Some of the climatological variables commonly measured to determine the climate temperature, moistness, atmospheric pressure, current of air, and precipitation.

ii. Weather: It is defined as the state of atmosphere, describing the degree of heat or coldness, wetness or aridness, calm or stormy. It also refers to daily temperature and rainfall activities.

iii. Ocean Current: It is more or less perpetual or continuous engaged movement of oceanic water flowing on the Earth’s oceans. The current gets created as the resultant of geological forces acting on the oceanic surface.

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Answer Details :

Grade: High School

Subject: Geography

Chapter: Climate

Keywords:

Earth, solar radiation, orbicular shape, June, sun, Tropic of cancer, Tropic of Capricorn,Climate,climatological variables, climate temperature, moistness, atmospheric pressure, current of air, and precipitation, daily temperature ,rainfall activities

4 0

3 years ago

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What will happen to the salt when mixed to liquid?

Pepsi [2]

Answer:

the salt dissolves in water because of covalent bonds.

Explanation:

mark me brainliest.

8 0

2 years ago

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I NEED HELP ASAP!!! THIS IS A 30 POINT QUESTION!!!

bekas [8.4K]

Answer:

4

Explanation:

Protein synthesis involves two major steps:

Transcription of the DNA to mRNA (a form of RNA)
Translation of the mRNA molecule into a protein.

Transcription involves the formation of a nucleotide sequence complementary to the DNA molecule, with the pairing of a different base, Uracil, with Guanine instead of the usual Thymine base. This occurs in the nucleus of the cell, and the resulting molecule is known as the mRNA.

This mRNA is transported into the cytoplasm through the nuclear pore for the next step, translation. This is primarily accomplished by ribosomes and tRNA molecules which are present in the cytoplasm of the cell. The result of this step is the generation of a protein molecule.

<h3>Hope this helps</h3>

6 0

2 years ago

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The alkali metals all react with water. which is the most reactive metal?

kifflom [539]

Alkali Metals (Group 1) elements experience an increase in the vigour of their reaction in water as they go down the group (as the atomic number increase). As such the most reactive Alkali Metal would be FRANCIUM, which is at the base of Group One.

Quite frankly, you do not want Francium to react with water- that's a huge explosion on your hand.

8 0

3 years ago