Which agricultural practices result in methane emission? Select the two correct answers.(1 point)
Responses
clearing land for farms
clearing land for farms
rice cultivation
rice cultivation
manure management techniques
manure management techniques
refrigeration
rice cultivation
manure management techniques
Select the correct answer from the list.(2 points)
Scientists have found that atmospheric carbon dioxide levels have
_________
from 280 parts per million to over
_________
parts per million during the last
_________
years.
Which of the following is the main cause of increased burning of fossil fuels?(1 point)
Responses
economic and population growth
economic and population growth
advancements in technology
advancements in technology
new types of energy production
new types of energy production
agricultural innovations