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Forestry MCQs with Explanations

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141ForestryMedium

The factors should be considered before deciding about the pieces to be planted are:

AAll of the above

BPurpose of plantation

CRelative costs

DEffect on site

EEcolosocial consideration

Correct answer

A. All of the above

Explanation

The correct answer is All of the above.

142ForestryMedium

Primary succession refers to the development of communities on a:

APond freshly filled with water after a dry phase

BForest clearing after devastating free

CNewly exposed habitat with no record of earlier vegetation

DFreshly cleared crop fields

Correct answer

C. Newly exposed habitat with no record of earlier vegetation

Explanation

The correct answer is Newly exposed habitat with no record of earlier vegetation.

143ForestryMedium

Leaf curling is caused by:

AO2

BH2S

CCO

DSO2

Correct answer

D. SO2

Explanation

The correct answer is SO2.

144ForestryMedium

Desertification is:

AUse of the desert for good of mankind

BControl of the desert

CNone of these

DSpread of the desert

Correct answer

D. Spread of the desert

Explanation

The correct answer is Spread of the desert.

145ForestryMedium

An area of ________ million ha is covered by forests and trees:

A5.3

B3.2

C4.23

DNone of these

Correct answer

C. 4.23

Explanation

The correct answer is 4.23.

146ForestryMedium

The greatest biomass of autotrophs in the world’s oceans is that of:

AFree-floating microalgae, cyanobacteria and nanoplankton

BBenthic diatoms and marine viruses

CBenthic brown algae, coastal red algae and daphnids

DSea-grasses and slime-molds

Correct answer

A. Free-floating microalgae, cyanobacteria and nanoplankton

Explanation

The correct answer is Free-floating microalgae, cyanobacteria and nanoplankton.

147ForestryMedium

From the onwards the coppice crop will be thinned on a ________ cycle:

ANone of these

B7 years

C10 years

D5 years

Correct answer

C. 10 years

Explanation

The correct answer is 10 years.

148ForestryMedium

Collection from standing trees is:

AThe falling seeds should be collected on a cloth sheet spread under the tree

BAll of the above

CSeed should be collected only from healthy trees

DThe person should climb the tree and shake branches or pick the needs himself.

Correct answer

B. All of the above

Explanation

The correct answer is All of the above.

149ForestryMedium

Tree planting on farmlands is:

APromote growing of compact plantations on waterlogged, saline and other marginal private lands

BEncourage the private growing of industrial wood.

CEncourage large scale growing of trees on private farms by providing subsidized nursery stock and technical assistance

DAll of the above

Correct answer

D. All of the above

Explanation

The correct answer is All of the above.

150ForestryMedium

The percentage of argon in the atmosphere is:

A0.35%

B0.90%

CAbout 1%

D3%

Correct answer

B. 0.90%

Explanation

The correct answer is 0.90%.

Primary succession refers to the development of communities on a:

APond freshly filled with water after a dry phase

BForest clearing after devastating free

CNewly exposed habitat with no record of earlier vegetation

DFreshly cleared crop fields

Correct answer

C. Newly exposed habitat with no record of earlier vegetation

Explanation

The correct answer is Newly exposed habitat with no record of earlier vegetation.

The greatest biomass of autotrophs in the world’s oceans is that of:

AFree-floating microalgae, cyanobacteria and nanoplankton

BBenthic diatoms and marine viruses

CBenthic brown algae, coastal red algae and daphnids

DSea-grasses and slime-molds

Correct answer

A. Free-floating microalgae, cyanobacteria and nanoplankton

Explanation

The correct answer is Free-floating microalgae, cyanobacteria and nanoplankton.

Collection from standing trees is:

AThe falling seeds should be collected on a cloth sheet spread under the tree

BAll of the above

CSeed should be collected only from healthy trees

DThe person should climb the tree and shake branches or pick the needs himself.

Correct answer

B. All of the above

Explanation

The correct answer is All of the above.

Tree planting on farmlands is:

APromote growing of compact plantations on waterlogged, saline and other marginal private lands

BEncourage the private growing of industrial wood.

CEncourage large scale growing of trees on private farms by providing subsidized nursery stock and technical assistance

DAll of the above

Correct answer

D. All of the above

Explanation

The correct answer is All of the above.