a. an atomic nucleus is positively charged because it is composed of neutrons
b. an atomic nucleus is positively charged because it is composed of protons
c. An atomic nucleus is negatively charged because it is composed of electrons
d. an atomic nucleus is negatively charged because it is composed of neutrons
The correct answer is: an atomic nucleus is positively charged because it is composed of protons, option (b) is correct.
The atomic nucleus is the central part of an atom and is composed of protons and neutrons. Protons have a positive charge, while neutrons are neutral (have no charge). Therefore, the presence of positively charged protons in the nucleus is responsible for its overall positive charge.
Electrons, on the other hand, are found in the electron cloud outside the nucleus and contribute to the overall charge neutrality of the atom since they have a negative charge equal in magnitude to the positive charge of the protons, option (b) is correct.
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Answer:
an atomic nucleus is positively charged
Explanation:
because it is composed of protons so A
Answer:
A few ways could be
-toxic waste
-trash and plastic
-sewage
-indirect contamination
-bacteria and parasites
-mining
-burning fossil fuels
-direct marine dumping
-oil leak
-chemical pesticides
Explanation:
These are the 10 I found and came up with but there are many detrimental ways that we directly and indirectly effect the pollution of water.
2- Hypertension, or high blood pressure
3- Hypotension, or low blood pressure
4- Dehydration
The correct answer is: 2- Hypertension, or high blood pressure
Hypertension leads to heart failure. Also, as a result of hypertension body tends to retain fluid in order to maintain adequate blood volume. A failing heart is unable to handle that extra fluid, so it is transferred out of the blood vessels and into tissues causing the swelling of extremitets or edema.
A. They return nitrogen gas to air
B. They fix atmospheric nitrogen gas for the food chain
C. They decompose dead plants and animals
D. They build protein in plants
Answer:A. They return nitrogen gas to air
Explanation:
Answer:
The correct answer is B
Explanation:
Got it correct on GAVS..
Answer:
Protein synthesis, RNA sequestration, RNA transport and to control transcriptional gene.
Explanation:
The role of non-coding RNAs in transcriptional regulation as well as proteins synthesis etc. Non-coding RNAs is responsible for controlling different processes like protein synthesis, RNA sequestration, RNA transport and to control transcriptional gene through epigenetic regulation and chromatin remodeling. By interacting with DNA, RNA and proteins, non-coding RNAs can regulate chromatin structure and function and the transcription of neighboring.