Answer:
Extraction of oil from tar sands is not economically feasible.
Explanation:
If a filter in a fish tank creates a steam of flowing water near the edge it might overflow
Answer:
Trace fossils include footprints, trails, burrows, feeding marks, and resting marks.
Explanation:
Answer:
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase
