Which of the following changes should be implemented to achieve sustainable farming while also protecting the environment? a)tilling the ground to remove weeds and create uniform crops b)clearing land for agriculture by cutting down trees instead of burning them c)growing the same crop in a given field each year to improve efficiency d)using predatory insects to control pests that destroy crops instead of pesticides

Which incident would result in primary succession instead of secondary succession?

On a recent expedition to a remote region of northern canada, scientists uncovered skeletal remains from about 100,000 years ago. surprisingly, all the skeletal remains, which included many species from differing biological families and spanned about two thousand years, showed evidence of experiencing temperatures in excess of 1000 degrees fahrenheit (or 538 degrees celsius). which of the following, if true, best explains the apparent paradox between the cold environment and the evidence of the bones experiencing hot temperatures? (a) chemical changes that naturally occur during the process of decay in only one north canadian species produce the same evidence of the species' skeletons being exposed to hot temperatures as the expedition scientists found. (b) a little over 103,000 years ago, a large fire is known to have occurred in northern canada. (c) strong evidence exists that as early as 70,000 years ago, homo sapiens around the world relied heavily on fire to cook animals. (d) in the same expedition and in roughly the same layer of excavation, scientists found rudimentary wood cutting and hunting tools used by early humans.

Someone me with this: a mineral' is determined by its actomic structure.