36. What is the name of the layer of the Earth’s atmosphere where weather occurs?
A) Troposphere
B) Stratosphere
C) Mesosphere
D) Thermosphere
37. What is the name of the layer of the Earth’s atmosphere that contains the ozone layer?
A) Troposphere
B) Stratosphere
C) Mesosphere
D) Thermosphere
38. What is the name of the process by which oxygen and carbon dioxide are exchanged between living organisms and the environment?
A) Respiration
B) Photosynthesis
C) Transpiration
D) Eutrophication
39. What is the name of the process by which plants use sunlight to make food?
A) Respiration
B) Photosynthesis
C) Transpiration
D) Eutrophication
40. What is the name of the process by which water is released from the leaves of plants?
A) Respiration
B) Photosynthesis
C) Transpiration
D) Eutrophication
