Write the symptoms of malaria in human and explain what causes these symptoms.
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Malaria symptoms are caused by the rupture of red blood cells infected by Plasmodium parasites, releasing toxins that trigger fever and other symptoms.
Solution and Explanation
Symptoms: Fever, chills, sweating, headache, muscle pain, and fatigue.
Cause: Malaria is caused by Plasmodium parasites. These parasites infect red blood cells, causing their rupture and the release of toxins into the bloodstream.
Top Questions on Environment
- The ____________________ mandates banning the use of CFC compounds and other ozone depleting chemicals, which is considered a crucial step towards environment and sustainable development:
Match List-I with List-II
List-I List-II (A) Green power and Bio-fuels (IV) Vehicle will run on ethanol made from sugar cane and jatropha seeds (B) Hydro-electric power (III) Renewable natural resources (C) Thermal Power (I) Generated by coal and oil (D) Nuclear Power (II) Recent origin and its supply accounts for less than 3% of the total installed capacity of electricity - Which of the following UN conference on climate change held in 1997, resulted in an international agreement to fight global warming which called for reductions in emissions of greenhouse gases by industrialized nations-
- The IUCN Red List is a catalogue of --
- Assertion (A): The problem of organic pollution in rivers is usually worse in the hot summer months.
Reason (R): Higher water temperatures exacerbate oxygen depletion.
Questions Asked in CBSE CLASS XII exam
- The rate for the following reaction is given by: \[ A + B \rightarrow C, \quad \text{Rate} = k[A][B]^2 \] How is the rate affected if we double the concentration of B?
- CBSE CLASS XII - 2026
- Chemical Kinetics
- Find the general solution of the differential equation \[ y\log y\,\frac{dx}{dy}+x=\frac{2}{y}. \]
- CBSE CLASS XII - 2026
- Differential Equations
- A square loop of side 0.50 m is placed in a uniform magnetic field of 0.4 T perpendicular to the plane of the loop. The loop is rotated through an angle of 60° in 0.2 s. The value of emf induced in the loop will be:
- CBSE CLASS XII - 2026
- Electromagnetic induction
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following:
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).
- CBSE CLASS XII - 2026
- Integration
- Consider a cylindrical conductor of length \( l \) and area of cross-section \( A \). Current \( I \) is maintained in the conductor and electrons drift with velocity \( \vec{v}_d \, (|\vec{v}_d| = \frac{eE}{m} \tau) \), where symbols have their usual meanings. Show that the conductivity of the material of the conductor is given by \[ \sigma = \frac{n e^2 \tau}{m}. \]
- CBSE CLASS XII - 2026
- Current Density