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An advantage of using synthetic fertilizer instead of organic fertilizer is that synthetic fertilizer can provide more targeted macronutrients to the crops.
Farmers need to make many decisions about how they grow their crops. One of these decisions is whether to use synthetic fertilizer or organic fertilizer, such as manure. An advantage of using synthetic fertilizer instead of organic fertilizer is that?
Australia
Which country has the greatest percentage of land area affected by desertification?
e) increasing consumption of protein
Factors contributing to the rise in world hunger include all of the following except.
a) unequal distribution of available food supplies
b) loss of or decline in arable land
c) increasing rate of population growth
d) increasing poverty in developing countries
e) increasing consumption of protein
enables life on Earth to adapt to and survive dramatic environmental changes
Why is genetic diversity important?
eutrophication from excessive fertilizer use
What is a major environmental problem caused by using the agricultural practice of tilling?
Practicing crop rotation
What is a realistic solution for farmers to decrease the amount of fertilizer and sediment runoff into aquatic ecosystems?
Development of new strains of crops with higher yields
Describe a fundamental characteristic of the green revolution in food resources.
Use of GM seeds can lead to loss of genetic diversity in crops, they can become invasive or can cause other unknown health risks
What are the disadvantages of GMOs
slow
If a pollutant took a long time to infiltrate into the ground, is the removal of the pollutant going to be fast or slow?
The use of glyphosate has selected for herbicide resistance in weed populations.
Which of the following statements best explains the relationship shown on the graph?
Aquifers will be depleted if demand is higher than recharge rate.
If the trend in total water withdrawal represented in the graph continues, which of the following is most likely to happen in the future?
Genetic resistance to pests and diseases can be increased by crossing a crop plant with ancestral varieties
Which of the following statements about genetic diversity is true?
decreases in organic matter and specific nutrients in the soil
Why are monocultures bad
add sand to the soil to increase the permeability of the soil
A farm is experiencing extensive crop loss due to high rains causing overly saturated soils. What approach would best help the farmer alleviate the problem?
Flood irrigation is often used in agricultural fields, however, it increases surface erosion and salinization of the soil.
Farmers use various methods of irrigation on crops. Which of the following statements correctly pairs an irrigation method with an advantage or disadvantage?
Asia
Based on the data in the graph, which location showed an annual average grain yield in 1991-1993 that was approximately 2.3 times the yield in 1961-1963 ?
Government grants to assist farmers with the up-front installation costs of drip irrigation systems.
Based on the data in the graph, which of the following proposed solutions would have the greatest effect on reducing global water withdrawals?
56%
Based on the data in the graph, which of the following illustrates the approximate percent increase in total water withdrawals between 1970 and 2010 ?
