Directions Read the instructions for this self-checked activity Type in your response to each question, and check your answers. At the
end of the activity, write a brief evaluation of your work.
A
Activity
Many farmers and gardeners compost their plant and animal waste. The living material naturally decays in compost bins,
forming a dirt-like substance that's rich in nutrients. The next season, farmers use this substance as a natural fertilizer for
their crops.
A biology student has grown tomato plants for several years. Until now, he used an artificial fertilizer formulated for
tomato plants. This fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. The student
wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial
fertilizer
Answer the following questions to plan an investigation using the steps of the scientific method and help the student find
the answer to his question,
Part A
What are the student's observations and inferences before he starts his investigation?

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.

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Which food could be transported in a galvanized metal container?