The question asks about the predominant soil type found along the eastern coast of India. To answer this, we need to recall the geographical distribution of major soil types in India, particularly focusing on coastal regions and river deltas.
B) Alluvial — Alluvial soil is extensively found in the eastern coastal plains of India, particularly in the deltas of the Mahanadi, Godavari, Krishna, and Kaveri rivers. These soils are formed by the deposition of sediments brought by rivers and are known for their fertility.
This problem can be solved by using the fundamental relationship between the Highest Common Factor (HCF) and the Least Common Multiple (LCM) of two numbers. The product of two numbers is always equal to the product of their HCF and LCM.
Correct Option: D) 30
We need to find the number of sides of a regular polygon given the difference between its exterior and interior angles. We will use the standard formulas for interior and exterior angles of a regular polygon and solve the resulting system of equations.
Let \(n\) be the number of sides of the regular polygon.
The formula for the interior angle (\(I\)) of a regular polygon with \(n\) sides is:
\[ I = \frac{(n-2) \times 180^\circ}{n} \]The formula for the exterior angle (\(E\)) of a regular polygon with \(n\) sides is:
\[ E = \frac{360^\circ}{n} \]We know that the sum of the interior and exterior angles at any vertex of a polygon is \(180^\circ\):
\[ I + E = 180^\circ \]The problem states that the difference between the exterior and interior angles is \(60^\circ\), and the interior angle is greater than the exterior angle. So, we can write:
\[ I - E = 60^\circ \]Now we have a system of two linear equations with two variables \(I\) and \(E\):
Equation (1): \(I + E = 180^\circ\)
Equation (2): \(I - E = 60^\circ\)
Add Equation (1) and Equation (2):
\[ (I + E) + (I - E) = 180^\circ + 60^\circ \]\[ 2I = 240^\circ \]\[ I = 120^\circ \]Substitute the value of \(I\) into Equation (1) to find \(E\):
\[ 120^\circ + E = 180^\circ \]\[ E = 180^\circ - 120^\circ \]\[ E = 60^\circ \]Now, use the formula for the exterior angle to find the number of sides \(n\):
\[ E = \frac{360^\circ}{n} \]\[ 60^\circ = \frac{360^\circ}{n} \]\[ n = \frac{360^\circ}{60^\circ} \]\[ n = 6 \]Alternatively, we could use the interior angle formula:
\[ I = \frac{(n-2) \times 180^\circ}{n} \]\[ 120^\circ = \frac{(n-2) \times 180^\circ}{n} \]\[ 120n = 180n - 360 \]\[ 360 = 180n - 120n \]\[ 360 = 60n \]\[ n = \frac{360}{60} \]\[ n = 6 \]Thus, the number of sides of the polygon is 6.
C) 6 is the correct number of sides for the polygon, as calculated from the given conditions.
Which of the following gas is not related to acid rain?
The question asks to identify the gas that is NOT related to acid rain. Acid rain is primarily caused by the emission of sulfur dioxide and nitrogen oxides into the atmosphere, which then react with water, oxygen, and other chemicals to form sulfuric and nitric acids.
A) NH\(_3\) — Ammonia (\(\text{NH}_3\)) is an alkaline gas. While it is an air pollutant and contributes to particulate matter formation, it acts as a base and can neutralize atmospheric acids. Therefore, it is not a gas that causes acid rain; rather, it can mitigate its effects or form ammonium salts.
The question asks for the correct order of the four stages in the life cycle of mosquitoes. This is a fundamental concept in biology, specifically entomology, and is important for understanding disease vectors.
Therefore, the correct sequence is egg, larva, pupa, imago.
Correct Option: A) egg, larva, pupa, imago
The question asks to identify the country that detained its former Vice President Ahmed Adeeb in August 2019. This is a factual question related to international current affairs and political developments.
A) Maldives: Ahmed Adeeb, the former Vice President of the Maldives, was sent to a detention center in August 2019 upon his return to the country after an attempt to flee. He was facing charges related to corruption and an alleged assassination plot.
This problem involves applying a set of given symbol transformations to a mathematical expression and then evaluating the new expression using the standard order of operations (BODMAS/PEMDAS).
The original expression is: \(100 \div 5 – 6 + 1 \times 6\)
Applying the transformations:
So, the new expression is: \(100 - 5 \times 6 \div 1 + 6\)
The order of operations is Brackets, Orders (powers/roots), Division and Multiplication (from left to right), Addition and Subtraction (from left to right).
Expression: \(100 - 5 \times 6 \div 1 + 6\)
First, perform Multiplication and Division from left to right:
Next, perform Addition and Subtraction from left to right:
Correct Option: A) 76
The question asks to identify the largest coffee-producing country globally. This requires knowledge of world geography and agricultural statistics related to coffee production.
Brazil has historically been and continues to be the largest producer of coffee in the world, accounting for a significant portion of global coffee supply. Its favorable climate and vast agricultural lands are ideal for coffee cultivation.
B) Brazil is the biggest coffee-producing country in the world. It has held this position for many years, producing millions of bags of coffee annually and exporting to various countries.
The question asks for the original name of a prominent spiritual figure. This requires knowledge of the birth names of famous Indian spiritual leaders.
C) Ram Krishna Paramhansa. His birth name was Gadadhar Chattopadhyay. He was a prominent 19th-century Indian mystic and saint.
The given series consists of terms with a letter, a number, and another letter. We need to analyze the pattern for each component (first letter, number, second letter) separately to find the next term in the series.
Correct Option: B) F17V