Which forest also known as the 'lungs of the planet earth'?

Darwin's finches and Australian marsupials are an example of:

Read the passage carefully and give the answers to the question :
Does the number of species in a community really matter to the functioning of the ecosystem? This is a question for which ecologists have not been able to give a definitive answer. For many decades, ecologists believed that communities with more species, generally, tend to be more stable than those with less species.
According to the International Union for Conservation of Nature and Natural Resources (IUCN) (2004), the total number of plant and animal species described so far is more than 1.5 million.
Which of the following is not a characteristic of a stable biological community?

In gel electrophoresis, the natural polymer agarose gel used as medium is extracted from:

Who proposed the concept 'saltation' in evolution?

Read the following passage carefully and answer the given questions.
Theory of Evolution
The evolution of life is a gradual process through which simple organisms are transformed into complex life forms over billions of years. It involves genetic changes, adaptation to the environment, and the emergence of diversity in species. Fossil records provide evidence of extinct life forms and transitional stages. Evolution is influenced by factors such as mutation, genetic recombination, and environmental pressure, shaping the biodiversity we see today. Charles Darwin and Alfred Russel Wallace were pioneering naturalists who developed the theory of evolution by natural selection.
Alfred Russel Wallace, a naturalist, arrived at conclusions similar to Darwin while working in:

Which of the following is NOT a basic step in the genetic modification of an organism?

An electron is projected with uniform velocity along the axis of a current carrying long solenoid. Which of the following is true ?

Answer the question on the basis of passage given below:
In the periodic table, the d-block contains the elements of group \(3\) to \(12\). The d-orbitals are progressively filled in each of the four long periods. The elements of d block referred as transition metals have partly filled d orbitals and exhibit certain characteristic properties such as variety of oxidation states, formation of coloured ions, act as catalyst and show paramagnetic behaviour.
The two inner transition metals series \(4f\) and \(5f\) are known as Lanthanoids and Actinoids respectively. The lanthanoids resemble one another more closely as compared to ordinary transition elements in any series.
Highest oxidation state of manganese in fluoride is \(+4\left( MnF _4\right)\) but highest oxidation state in oxides is \(+7\left( Mn _2 O _7\right)\) because:

Match List I with List II

LIST I	LIST II
A. Anaerobic sludge digestor	I. Secondary treatment
B. Primary sludge	II. Activated sludge
C. Change in BOD	III. Primary treatment
D. Bacterial flocs	IV. Biogas

Choose the correct answer from the options given below:

If the angular velocity of coil in an AC generator is doubled while keeping other parameters constant, the maximum induced emf

In the context of the formation of images by spherical mirror, which of the following statements are correct?
(A) Magnification m is +ve for real images and -ve for virtual images.
(B) f and R are -ve for a concave mirror and +ve for a convex mirror.
(C) Magnification m has no units.
(D) For a real object, u is +ve and v is +ve for real image and -ve for virtual image.
Choose the correct answer from the options given below:

Match List-l with List-II

List - l (Terms)	List - lI (Features)
(A) Natality	(I) Exit of individuals
(B) Mortality	(II) Entry of individuals
(C) Immigration	(III) Death rate
(D) Emigration	(IV) Birth rate

Choose the correct answer from the options given below: