Minerals form from magma in predictable patterns in a process known as
a. intrusion
b. fractional crystallization
c. bowens reaction serious
d. partial melting

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

Select the word from the list that best fits the definition a system made of 25 satellites