Answer;
C. Poor farming techniques that killed the soil were combined with drought.
Explanation;
-The Dust Bowl was caused by several economic and agricultural factors, including federal land policies, changes in regional weather, farm economics and other cultural factors.
-After the Civil War, a series of federal land acts coaxed pioneers westward by incentivizing farming in the Great Plains.
If D is dominant and d is recessive
1. Dd
2. DD
3. dd
Answer:
75years
Explanation:
Let the Father's age be represented by 2x
Let the Son's age be represented by x
Five years ago;
Man's age will be = 2x - 5
Son's age will be = x - 5
If the ratio of their ages five years ago was 9:4, then;
2x - 5/x-5 = 9/4
4(2x - 5) = 9(x - 5)
8x - 20 = 9x - 45
- Collect like terms
-20 + 45 = 9x - 8x
25 = x
Hence, the son's age = 25 years
If x = 25, the father's age (2x) will be 2 × 25 = 50years
The sum of their ages will be = 25years + 50years = 75years
Circulatory system and nucleus
My diagnosis in this case is that the 6-month-old girl suffered from the infection caused by the virus called rotavirus.
<h3>What is rotavirus?</h3>
A rotavirus belongs to the genus within the family of virus called Reoviridae. They are made up of a double capsid and a double-stranded RNA genome.
The symptoms of this virus include:
Therefore, the correct diagnosis should be that the 6-month-old girl suffered from the infection caused by the virus called rotavirus.
Learn more about virus here:
brainly.com/question/17395741
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