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HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Important Questions

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Give reason:

Monocytes are called scavengers.

Appears in 1 question paper
Chapter: [14] Ecosystems and Energy Flow
Concept: Classification of Animal

Describe pyramid of energy with the help of diagram.

Appears in 1 question paper
Chapter: [14] Ecosystems and Energy Flow
Concept: Ecological Pyramids

Which one of the following does not evolve further?

Appears in 1 question paper
Chapter: [14] Ecosystems and Energy Flow
Concept: Biotic or Ecological Succession

Global warming is caused by the 'greenhouse effect'. Justify.

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Green House Effect

Which method of conservation of biodiversity includes 'hotspot' method?

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Conservation of Wildlife

Justify the conservation of endangered species of plants and animals is necessary

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Conservation of Wildlife

Give any 'two' examples of endangered species

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Loss of Biodiversity

Enlist the causes of deforestation.

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Deforestation and Its Causes

Define 'Greenhouse effect'.

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Green House Effect

Hot spot method of in situ conservation protects ___________ species in its own habitat.

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Conservation of Wildlife

What is deforestation?

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Deforestation and Its Causes

Attempt any TWO of the following: 

Define ‘deforestation’. Comment on its effects

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Deforestation and Its Causes

The permanent removal of forests and woodlands is called ---------------

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Deforestation and Its Causes

Suggest measures to conserve the forests. 

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Deforestation and Its Causes

Observe the graph and select the correct option:

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Patterns of Biodiversity

Enlist any six categories into which a given species is placed once it has been thoroughly evaluated by IUCN.

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Loss of Biodiversity

The reasons for conservation of biodiversity can be classified into three categories. Name them and describe each in brief.

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Conservation of Wildlife

Write short note on Green House Effect.

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Environmental Issues

How many Biodiversity hotspots have been identified around the world?

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Loss of Biodiversity

Write a note on In-situ conservation.

Appears in 1 question paper
Chapter: [15] Biodiversity, Conservation and Environmental Issues
Concept: Conservation of Wildlife
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