The answer is 2. no plants or widely spaced plants.
The answer is: his study does not qualify as an experiment. For the study to be an experiment, Dr. Kline would have to manipulate the independent variable in a group (for example, apply a certain treatment) and also have a control group to which he doesn’t apply such treatment.
In this case, the study is an observational study because he only observed the subjects that were in the zoo that morning and measured the variable of his interest, that is the environmental attitude of the visitors, he did not apply a certain treatment to the group nor manipulate any variable.
Answer:
Siliceous ooze
Explanation:
Siliceous ooze is the type of sediment that form at high depth in ocean floor. Total percentage of siliceous ooze sediment is approximately 15%. This type of sediment composed from skeleton of different microorganism i.e phytoplankton, silicone etc.
This type of sediment are least common in the ocean thus make 15%of total population of ocean.
Answer:
that's true
Explanation:
it's the Nervousnes System
People want areas with lots of water for drinking, irrigation, and more. So, they would build more communities near bodies of water to meet these needs
