Answer the following question given this paragraph: Another example of species loss due to habitat destruction happened on Madagascar's central highland plateau. From 1970 to 2000, slash-and-burn agriculture destroyed about 10% of the country's total native plants. The area turned into a wasteland. Soil from erosion entered the waterways. Much of the river ecosystems of several large rivers were also destroyed. Several fish species are almost extinct. Also, some coral reef formations in the Indian Ocean are completely lost. Q: What kind of agriculture destroyed about 10% of madagascar's native plants? Choices: - hybridization - crop rotation - fertilizer use - slash-and-burn A:
slash-and-burn

Answer the following question given this paragraph: A unit cell is the smallest portion of a crystal lattice that shows the three-dimensional pattern of the entire crystal. A crystal can be thought of as the same unit cell repeated over and over in three dimensions. The Figure below illustrates the relationship of a unit cell to the entire crystal lattice. Q: What is the smallest portion of a crystal lattice? Choices: - ionic cell - function cell - element cell - unit cell A:
unit cell

Answer the following question given this paragraph: Photosynthetic protists use light energy to make food. They are major producers in aquatic ecosystems. Q: In order to create food, what do photosynthetic protists use? Choices: - thermal energy - hydrocarbons - decayed matter - light energy A:
light energy