Under theme: Environment & Ecology
73 PYQs. Learn elimination tricks first, then attempt the questions below.
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Associate Golden Mahseer with its known status as a fish, often highlighted in conservation news.
Associate specific National Parks with their unique ecological features, like Valley of Flowers with alpine m…
The organisms "Cicada, Froghopper and Pond skater" are:
* Cicada: Known for their loud buzzing sounds, cicadas are insects. * Froghopper: Also known as spittlebugs, they are small, jumping insects. * Pond Skater: These insects are known for their ability to walk on the surface of water. All three organisms are classified as insects.
Consider the following pairs:
Country - Animal found in its natural habitat
1\. Brazil - Indri
2\. Indonesia - Elk
3\. Madagascar - Bonobo
How many of the pairs given above are correctly matched ?
1. Brazil - Indri: Indris are _lemurs_ found only in Madagascar, not Brazil. So, this pair is incorrect. 2. Indonesia - Elk: Elks are found in North America, Europe, and Asia, but not in Indonesia. This pair is incorrect. 3. Madagascar - Bonobo: Bonobos are found in the Democratic Republic of Congo, not Madagascar. This pair is also incorrect. Therefore, none of the pairs are correctly matched.
Consider the following :
1. Cashew
2. Papaya
3. Red sanders
How many of the above trees are actually native to India?
* Cashew: Originally native to Brazil, cashew was brought to India by Portuguese traders in the 16th century. * Papaya: Papaya also originated in the Americas, specifically in southern Mexico and Central America. * Red Sanders: This tree, known for its valuable reddish wood, is endemic to India. It is found in the Eastern Ghats, particularly in Andhra Pradesh. Therefore, only Red Sanders is native to India.
146 min · −33% negative · explanations after submit
Consider the following plants:
1. Groundnut
2. Horse-gram
3. Soybean
How many of the above belong to the pea family?
All three plants—Groundnut, Horse-gram, and Soybean—belong to the pea family, scientifically known as Leguminosae or Fabaceae. This family is characterized by plants that produce legumes (pods containing seeds). Here's a breakdown of each: Groundnut (Arachis hypogaea): * Groundnut, also known as peanut, belongs to the Leguminosae family. It produces peanuts, which grow underground in pods, typical of legumes. * It is part of the subfamily Faboideae, a major division within the pea family. Horse-gram (Macrotyloma uniflorum): * Horse-gram is another plant in the Leguminosae family. It is commonly cultivated in tropical regions and is known for its high protein content and use in animal feed and food. * It belongs to the subfamily Faboideae as well. Soybean (Glycine max): * Soybean, one of the most important leguminous crops, also belongs to the Leguminosae family. It is widely grown for its edible beans and oil extraction. * Soybean is part of the subfamily Faboideae too. All three plants are legumes, characterized by their pod-like fruit and ability to fix nitrogen from the atmosphere through a symbiotic relationship with bacteria in their root nodules.
Consider the following statements:
Statement I: Marsupials are not naturally found in India.
Statement II: Marsupials can thrive only in montane grasslands with no predators.
Which one of the following is correct in respect of the above statements?
* Statement I is correct: Marsupials, which are a type of mammal characterised by the presence of a pouch (marsupium) for carrying their young, are not naturally found in India. Marsupials are primarily native to the Americas and Australia. * Statement II is incorrect: Marsupials can thrive in a variety of habitats, not just montane grasslands without predators. Many marsupial species are found in a wide range of ecosystems, including forests, savannas, and even urban areas, and can coexist with a variety of predators. Therefore, the correct answer is: Statement-I is correct, and Statement II is incorrect.
Which one of the following makes a tool with a stick to scrap insects from a hole in a tree or a log of wood?
* Orangutans are known for their intelligence and tool-use capabilities. They have been observed using sticks in various ways, including scraping insects from holes in trees and logs, extracting honey from beehives, and even using leaves as utensils.
146 min · −33% negative · explanations after submit
Which of the following organisms perform waggle dance for others of their kin to indicate the direction and the distance to a source of their food?
* The honey bee dance, also known as the waggle dance, is a form of communication performed by worker honey bees to other members of the honey bee colony. The waggle dance was famously decoded by Austrian scientist, Karl von Frisch.
* The direction the bee moves in relation to the hive indicates direction; if it moves vertically, the direction to the source is directly towards the Sun.
* The duration of the waggle part of the dance signifies the distance.
Hence, option (C) is the correct answer.
Consider the following fauna:
1. Lion-tailed Macaque
2. Malabar Civet
3. Sambar Deer
How many of the above are generally nocturnal or most active after sunset?
* Lion-tailed Macaque: This is a diurnal animal, meaning it's active during the day. * Malabar Civet: This is a nocturnal animal, primarily active at night. * Sambar Deer: These are crepuscular animals, most active during dawn and dusk. Therefore, only one (1) of the fauna is generally nocturnal or most active after sunset (Malabar Civet).
Consider the following statements regarding the Indian squirrels:
1. They build nests by making burrows in the ground.
2. They store their food materials like nuts and seeds in the ground.
3. They are omnivorous.
How many of the above statements are correct?
* Statement 1 is not correct. Squirrels are generally small to medium-size rodents, but there are a few species that are giant in size like the Malabar giant squirrel and Malayan giant squirrel. Giant tree squirrels are the members of the squirrel family. They are arboreal species and live mostly on trees in the forest, but now also have adapted to human environments. * Statement 2 is correct. To prepare for colder months, squirrels cactch food during the spring and summer by gathering extra nuts. They bury the surplus in the area surrounding their nests, splitting it into different underground pantries to save for later. * Statement 3 is correct. While nuts and fruits make up a majority of its diet, the Indian sun squirrel will also eat insects, other smaller mammals, and reptiles.
Consider the following trees:
1. Jackfruit (Artocarpus heterophyllus)
2. Mahua (Madhuca indica)
3. Teak (Tectona grandis)
How many of the above are deciduous trees?
* Option 1 is incorrect: Jackfruit, (Artocarpus heterophyllus) is a tropical evergreen tree (family Moraceae) native to tropical Asia and widely grown throughout the wetland tropics for its large fruits and durable wood. The greenish unripe fruit is cooked as a vegetable, and the brown ripened fruit is eaten fresh for the sweetly acidic but insipid pulp surrounding the seeds. * Option 2 and 3 are correct: The Moist deciduous forests are more pronounced in the regions which record rainfall between 100-200 cm. These forests are found in the northeastern states along the foothills of Himalayas, eastern slopes of the Western Ghats and Odisha. Teak, sal, shisham, hurra, mahua, amla, semul, kusum, and sandalwood etc. are the main species of these forests.