Environment GK Practice Question and Answer
8 Q: In our country, vast tracks of forests are cleared and a single plant species is cultivated. This practice promotes:
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638a0db4c878936066ea3eaa- 1bio-diversity in the area.false
- 2monoculture in the area.true
- 3growth of forests.false
- 4preservation of natural ecosystem.false
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Answer : 2. "monoculture in the area."
Explanation :
Final answer: In our country, vast tracts of forests are cleared and a single species of plant is cultivated. This practice promotes monoculture in the area.
Q: Which of the following reproduces from underground stem?
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624c6d57e6c50b4b29d2d300- 1Radishfalse
- 2Potatotrue
- 3Carrotfalse
- 4Sweet potatofalse
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Answer : 2. "Potato"
Explanation :
Potatoes are modified underground stems. They have portions called 'eyes' that can give rise to new plants.
Q: Which animal has been taken as a symbol by the World Wildlife Fund?
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624b163e398e4a497b59e05d- 1Pandatrue
- 2rhinocerosfalse
- 3deerfalse
- 4Tigerfalse
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Answer : 1. "Panda"
Explanation :
The giant panda is the featured animal on the logo for World Wildlife Fund as a symbol of all endangered species that would be able to thrive if permitted the range and natural environment of their origin. Our logo is representative of World Wildlife Fund's commitment to protect wildlife and wild spaces.
Q: Consider the following functions for plants:
A. To give support to the plant
B. To provide humus
C. To store food
D. To absorb water and minerals
The functions of roots are
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6246f41e398e4a497b448275- 1A and B onlyfalse
- 2C and D onlyfalse
- 3B , C and Dfalse
- 4A , C and Dtrue
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Answer : 4. "A , C and D "
Explanation :
Explanation: Roots are the underground structures that help in the absorption of water and minerals, provide a proper anchorage to the plant parts, store reserve food material (Carrot, Radish), and synthesize PGR (plant growth regulators). Sometimes roots get modified to perform different functions like Storage of food, respiration, climbing, etc. These types of roots are called modified roots. Examples - prop root of the Banyan tree for providing support, Pneumatophores of Rhizophora, and Mangrove plants for respiration. So, these statements are correct. A. To give support to the plant. C. To store food. D. To absorb water and minerals.
Q: Below are a few statements given about afforestation.
A. Afforestation could prevent flooding.
B. Afforestation can balance our ecosystem.
Which of the above statements is/are correct?
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64b52324e154aff5337375f5A. Afforestation could prevent flooding.
B. Afforestation can balance our ecosystem.
Which of the above statements is/are correct?
- 1Both A & B are incorrectfalse
- 2Only Bfalse
- 3Both A & Btrue
- 4Only Afalse
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Answer : 3. "Both A & B"
Explanation :
The following statements below are correct about afforestation.
A. Afforestation could prevent flooding.
B. Afforestation can balance our ecosystem.
Q: Plants release water into the air by the process of ______.
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6491982913e8bde0322ba788- 1photoperiodismfalse
- 2transpirationtrue
- 3photosynthesisfalse
- 4tropismfalse
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Answer : 2. "transpiration"
Explanation :
1. Plants release water into the air through a process called transpiration.
2. Transpiration is a natural process, by which plants expel water from their bodies in the form of vapor.
3. The process of transpiration takes place through small holes in the leaves, which are called stomata.
3. Transpiration is essential for plants, as it helps keep plants cool and transport nutrients from the roots to the leaves needed to make food.
Q: ______ includes all non-living components, such as air, cloud, dust, land, mountains, rivers, temperature, humidity, water, water vapour, sand, etc.
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6419b83c5bff3d098df6b0be- 1Biotic environmentfalse
- 2Abiotic environmenttrue
- 3Artificial environmentfalse
- 4Healthy environmentfalse
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Answer : 2. "Abiotic environment"
Explanation :
Abiotic components are non-living factors in the environment which affect ecosystems like temperature, light, air, soil etc.
Q: Which of the following is considered to be the purest form of natural water (distilled water) free from impurities?
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6419779ffb0ff69a8ee80503- 1Well waterfalse
- 2Spring watertrue
- 3River waterfalse
- 4Rain waterfalse
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Answer : 2. "Spring water "
Explanation :
Rainwater is the purest form of natural water. It is formed naturally by evaporation followed by condensation of water vapour.