How do leguminous plants contribute to improving soil fertility?
By increasing the water content in the soil
By reducing the plants' need for other nutrients
By increasing water drainage from the soil
By fixing atmospheric nitrogen in the soil
What is the main reason for the formation of acid rain?
Reaction of sulfur dioxide with water vapor
Accumulation of dust in the atmosphere
Evaporation of water from the oceans
Air pollution with plastic pollutants
If soil measurements show high acidity levels, what is the best procedure to improve the soil?
Adding chemical fertilizers
Adding agricultural lime
Reducing the number of plants planted
Increasing soil water content
When using a moisture meter, if the moisture value is very high, this indicates ..
Soil saturation with water
Increased soil salinity
Decrease in water level
Increased evaporation
What is the effect of acid rain on plant growth?
No effect on plants
Improving plant growth
Increasing fruit production
Slowing plant growth
Soil quality can be improved and erosion prevented by...
Planting a single crop
Vegetation cover
Increasing soil acidity
Reducing organic matter
Erosion of agricultural soil and change in its chemical composition results from...
Use of organic fertilizers
Water scarcity
Change in the pH value of the soil
Presence of carbonate salts in the soil
What is the main benefit of planting trees as windbreaks in agricultural areas?
Increasing soil moisture
Protecting soil from desertification
Improving soil drainage
Reducing soil nutrient requirements
What is the main benefit of planting plants that cover the soil?
Reduce soil nitrogen
Increase soil acidity
Increase root growth in the soil
Prevent soil erosion and maintain moisture
What is the effect of acid rain on forests?
Increased tree growth
Deterioration of tree health and death
Increased resistance of trees to diseases
Improving biodiversity in forests
Which of the following elements is depleted from the soil due to acid rain?
Carbon
Calcium
Nitrogen
Silicon
What is the effect of acid rain on plant soil?
Improve soil structure and enhance plant growth
Erosion of essential minerals in the soil and release of toxic metals
Increase soil fertility
Improve soil quality and increase nutrients
Which of the following options is the best way to increase soil fertility and improve its structure?
Plant crops with deep roots
Use drip irrigation only
Add organic fertilizer or compost
Add chemical fertilizers regularly
When forest trees are removed, this may lead to ...
Improving the local climate
Maintaining moisture
Increasing soil fertility
Soil erosion by rain
What is the primary environmental benefit of using organic fertilizers instead of chemical fertilizers?
Increasing soil water saturation
Reducing the need for irrigation
Increasing soil quality in the long term
Improving soil acidity
Which of the following is considered a direct effect of acid rain on agricultural crops?
Promote healthy crop growth
Reduce crop quality and productivity
Improve crop stability under changing environmental conditions
Increase agricultural crops
Among the acids that fall with rain after forming in the atmosphere...
Sulfuric acid
Nitric acid
Formic acid
Lactic acid
What is the most effective way to improve clayey soil drainage?
Planting shallow rooted plants
Adding nitrogen fertilizers
Adding sand
Increasing irrigation rate
Sometimes fertilizers are added... to balance the acidity in the soil
Organic
Biological
Alkaline
Natural
Which of the following methods causes an increase in the effect of acid rain on the soil?
Increasing industrial activity and fuel combustion
Reducing emissions
Imposing laws to regulate pollutant emissions
Using organic fertilizers
Which of the following options is best for increasing soil moisture retention capacity?
Using drip irrigation
Planting small plants
When bacteria and fungi grow more in the soil, this is an indication of ...
Increased decomposition and decreased moisture
Decreased decomposition and increased moisture
Increased decomposition and increased moisture
Decreased decomposition and decreased moisture
Why is it preferable to use a moisture meter instead of relying on visual observation only?
Because the device is cheaper than visual inspection
Because it also measures the soil temperature
To accurately determine the water level
Because dry soil always looks wet
One of the important minerals in the soil that helps increase soil fertility...
Mercury
Lead
Magnesium
Aluminum
Which of the following statements expresses acid rain?
Increases soil salinity
Free of pollutants
Occurs as a result of burning fuel
Increases soil fertility
Which of the following effects occurs to seeds when exposed to acid rain?
Improving seed quality
Increasing the germination rate
Increasing seed size
Delaying the germination process
What is the expected effect of excessively increasing soil moisture on plants?
Faster plant growth
Increased nutrient absorption
Root rot
Increased carbon dioxide absorption
Which of the following factors is considered the most influential in soil moisture fluctuations throughout the year?
Plant type
Activity of microorganisms
Soil type
Climate change
Which of the following gases contributes to the formation of acid rain?
Carbon dioxide
Oxygen
Hydrogen
What is the most common result of not measuring soil moisture regularly?
Improving crop quality
Irregular irrigation rates
Increasing nitrogen retention
It is considered an element... of the toxic elements in the soil that causes the death of the plant.
Which of the following oxides is considered an air pollutant?
KO2
NaO2
NO2
LiO2
The plant depends on the element ... mainly in the process of flower growth
Potassium
Phosphorus
Which of the following is a potential negative effect of over-irrigation?
Improving nutrient uptake
Soil water saturation and root destruction
Promoting deep root growth
Increasing soil aeration
What is the effect of acid rain on some toxic minerals in the soil?
Decreased deposition in the soil
Increased deposition in the soil
Transformation into useful minerals
Disappearance from the soil
Which of the following methods is preferable to follow to confront the effects of acid rain on soil?
Removing and ignoring contaminated soil
Increasing the use of pesticides
Using alkaline fertilizers such as lime to neutralize acids
Adding large quantities of chemical fertilizers
Which of the following effects can result from increased soil acidity?
Increasing the absorption of toxic metals by plants
Improving the soil's ability to retain water
Improving the soil structure
Increasing the activity of beneficial fungi
If the soil contains a high percentage of moisture, this may lead to ..
Reducing the amount of water required for irrigation
Decrease in root aeration
Better plant growth
Increase in soil acidity
Acid rain reacts after falling on the soil with...
Nitrate salts and minerals
Acids and minerals
Carbonate salts and minerals
Oxides and minerals
Phosphorus is one of the basic elements that plants need, because it helps to ...
Increase the green color of plant leaves
Healthy growth of plants
Flower growth
Strengthen plant roots