Answer:
faced a struggle for survival
Explanation:
The woolly mammoths became extinct, unlike the other species, because the woolly mammoths faced a struggle for survival due to changing of environmental conditions. Global warming is the main cause of extinction of woolly mammoth which destroy their habitats about 10,500 years ago. The environmental conditions are not favourable for them so they faced struggle for survival which causes extinction of woolly mammoth.
The following are different modern practices of sustainable agriculture, they include:
- crop rotation
- fertilizers
- genetic engineering
- clay pot drip irrigation
<h3>Meaning of Agriculture </h3>
Agriculture can be define as a branch of science that deals with study of plant cultivation and animal cultivation for man's use.
Agriculture is so important that every day scientists tends to do more research to help modernize and make agriculture better and bigger.
In conclusion, The above listed are different modern practices of sustainable agriculture.
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KCl + AgNO
3
→
KNO
3
+
AgCl
Explanation:
Formulas for the compounds:
KCl
:
potassium chloride (reactant)
AgNO
3
:
silver nitrate (reactant)
KNO
3
:
potassium nitrate (product)
AgCl
:
silver chloride (product)
KCl + AgNO
3
→
KNO
3
+
AgCl
If the compounds are in aqueous solution, then their physical states could be added.
KCl(aq) + AgNO
3
(
aq
)
→
KNO
3
(
aq
)
+
AgCl(s)
Answer: A
Explanation: The lower pH is higher acidity, and 3 is the lowest so it is the most acidic.
I think this happens when there is no gene flow or when the population is small. Small population, germ line mutation, beneficial mutation that gets into many progeny and is of high chance of luck. Genetic drift involves a process in which allele frequencies within a population change by chance only, as a result of sampling error from generation to generation. Genetic drift occurs mostly in small population since the infrequently occurring alleles face a greater chance of being lost.