Fish farming on the first floor, pigs on the second floor and tomatoes on the third floor ... Vertical agriculture refers to the self-circulation of simulating agricultural environment in urban multi-storey buildings through vertical farms.

Question 1:C

Question 2:D

Question 1: According to the materials, vertical agriculture refers to simulating the agricultural environment in urban multi-storey buildings and producing agricultural and sideline products through the self-circulation system of vertical farms. So it is inseparable from the progress of technology, c right. The development of transportation, the warming of climate and the reduction of labor force have an impact on vertical agriculture, but they are not the key to the development of vertical agriculture. A, B and D are wrong.

Question 2: Vertical agriculture produces agricultural and sideline products, not grain production, so it has little impact on grain production. More investment in technology, more energy consumption, ② wrong. Production in the building is conducive to avoiding natural disasters and stabilizing the supply of agricultural products. Developing vertical agriculture is convenient for saving cultivated land and reducing transportation costs. So d, right. A, b and c are wrong.