Answer:
(C) excessive nitrogen fixation
Explanation: could i get brainy.
Answer:
surface drainage systems
Explanation:
Karst is a kind of topography that is formed from the dissolution of soluble rocks (e.g. limestone, dolomite, and gypsum). It is composed by an underground drainage systems with sinkholes and caves, so a stream cannot be formed in this kind of topography.
The solubility of limestone in water and weak acid solutions leads to karst landscapes. Flowing rivers, can be found in areas away from karst topography. Sinkhole is not associated with areas of Karst topography.
Karst topography may contain sinkholes or funnel-shaped holes in the surface of the land, caverns, caves, and underground rivers. Karst topography varies greatly, from steep jagged cliffs to soft rolling hills; from microscopic in size to hundreds of square miles. Karst regions are found all over Earth.
Answer:
any couple sex together to sustain and growth a population
The correct answer is B. Cells divide, producing more cells.
Explanation
The cell is the basic unit of life for all living things. Likewise, it is a form of classification for them since living organisms can be classified according to the number of cells they have unicellular (a single cell), multicellular (more than one cell). In organisms that have more than one cell, they divide to produce more cells and form the organs and tissues themselves. Cell division can occur from two processes that are mitosis and meiosis in which two and four cells are produced respectively. According to the above, the correct answer is B. Cells divide and producing more cells.
