Read the following two cartoons and answer the following questions: (1) What do the two cartoons reflect? (2) At present, the most important land use type in China is _ _

(1) From the two cartoons, we can see that the first cartoon reflects the unreasonable use of cultivated land and seriously damages land resources; The second cartoon reflects the blind development of some places in China and the serious phenomenon of indiscriminate occupation of cultivated land;

(2) At present, the types of land use in China are grassland, cultivated land, forest land and building land, among which the most important land use type in China is cultivated land;

(3) Public service advertising words for protecting land resources can be: Protecting cultivated land is urgent; But save every inch of land and leave it to future generations to plow; Land-our life, please protect the land, etc.

(4) In view of the problems in cartoons, our measures to protect the existing cultivated land are as follows: it is forbidden to occupy cultivated land indiscriminately; According to local conditions, rationally develop and utilize land resources.

Therefore, the answers are: (1) The first cartoon reflects the unreasonable use of cultivated land and seriously damages land resources; The second cartoon reflects the blind development of some places in China and the serious phenomenon of indiscriminate occupation of cultivated land; （2）A； (3) It is urgent to protect cultivated land; But save every inch of land and leave it to future generations to plow; Land-our life, please protect the land, etc. (4) it is forbidden to occupy cultivated land indiscriminately; Develop and utilize land resources rationally according to local conditions.