* The term “Ecology" was given by Ernst Haeckel in 1866.

* Ecology is a branch of science including human science, population, community, ecosystem and biosphere.

* The main aim of ecology is to understand the distribution of biotic and abiotic factors of living things in the environment.

* The biotic and abiotic factors include the living and non-living factors and their interaction with the environment.

* Pradhan Mantri MUDRA Yojana (PMMY) was launched by the Prime Minister Narendra Modi on April 8, 2015.

* MUDRA stands for Micro-Units Development and Refinance Agency.

* Mudra loan scheme is categorized into 3 loan types Shishu, Kishor, and Tarun.

* Under this scheme, Loans upto Rs.50,000 are categorised as Shishu, Loans from Rs.50,001 to Rs.500,000 are categorised as Kishore and Loans from Rs.500,001/- to Rs.10,00,000/- are categorised as Tarun.

Plastids are only found in Plant cells.

• Plastids are responsible for manufacturing and storing of food, and contain pigments used in photosynthesis.

• The four main type of plastids are-

a) Chloroplasts – these are sites for process of photosynthesis.

b) Chromoplasts – responsible for different colours in plants and attracting pollinators.

c) Gerontoplasts – these are basically chloroplast with aging process

d) Leucoplasts – responsible for storage sheds for starches, lipids, and proteins.

Diameter of each circle = 12/2 = 6
Therefore, radius of a circle =6/2 = 3 cm

Area of remaining paper = 12² - 4π3² = (144 - 36Π)

Diameter of each circle = 12/3 = 4
Therefore, radius of a circle =4/2 = 2 cm

Area of the remaining paper = 12² –  =  cm²

Required difference = 0

Thus, the order is (3,1,5,2,4).

Hence, option D is the correct answer.

The correct order as per the dictionary is - 

Hence, option C is the correct answer.

The underlined part is grammatically incorrect. 

• "Bear down" is a phrasal verb which means to overcome.
  
  
• When used in this phrasal verb, the past form of "bear" is taken as "bore" and not "borne". 
  
  
• Please note that "born" and "borne" both are past participle of "bear". 
  
  Born is the past participle of the verb bear only when it’s used in the sense of birth. It is also used as an adjective in the same sense. 
  
  Borne is the past participle of the verb bear in all senses except the one related to birth. It can also be used as an adjective in these senses.

The meanings of other words are :-

Already = prior to a specified or implied time.

Alien = not contained in or deriving from the essential nature of something.

Awful = exceptionally bad or displeasing.

• The reporting verb "said" will change to "told" in indirect speech as it is followed by an object (me).

• The inverted commas (“ “) used in Direct Narration are removed in Indirect Narration and “that” conjunction is used.

• As the reporting verb is in past tense (said), the tense of the speech will change from the simple present tense (is) to the simple past tense (was).

• The first person pronoun (my) changes to the third person pronoun (his) according to the subject of reporting speech (he).