Answer:
it has to do with the light or the brightness of a star
<span>The science processes are the following:
Observing
Inferring
Measuring
Communicating
Classifying
Predicting
Controlling variables
Defining operationality
Formulating hypothesis
Interpreting data
Experimenting
Formulating models
</span>
Answer:
<em><u>30 units</u></em><em><u> </u></em><em><u>of </u></em><em><u>energy</u></em><em><u> </u></em><em><u>will </u></em><em><u>be </u></em><em><u>available</u></em><em><u> </u></em><em><u>to </u></em><em><u>primary</u></em><em><u> </u></em><em><u>predators.</u></em>
Explanation:
Using 10 % law i.e at each step 10 % of energy is transferred to the next trophic level at the rest of either consumed or lost to environment..
so plants have = 3000 units
herbivores = 10% of 3000 = 10/100 × 3000
= 300 units
so primary predators will have = 10% of 300
= 10/100 × 300 = 30 units
Answer:
The correct answer would be fluorinated compounds and HFCs.
Explanation:
Chlorofluorocarbons or CFCs are halocarbons that contain molecules of chlorine, fluorine, and carbon. These chemicals were heavily used in sprays, packaging materials and refrigerators. CFCs cause depletion in stratospheric ozone.
Due of their harmful effects on ozone layer, chlorofluorocarbons have been banned since 1996. After the banning of chlorofluorocarbons, hydroflurocarbons (HFCs) and fluorinated compounds are in used in place of CFCs as they do not deplete stratospheric ozone as much CFCs does, and do not contain chlorine.
Thus, the correct answer would be fluorinated compounds.
Neuroblastoma is a type of childhood cancer that originates in the immature nerve cells of the sympathetic nervous system. These cells are called neuroblasts.
Hodgkin's disease is a form of cancer of the lymphatic system. During this disease, abnormal proliferation of a certain type of white blood cell (lymphocytes) is observed.
The doctor will observe more cases of neuroblastoma than Hodgkin's lymphoma because neuroblastomas start at birth and evolve with age, while Hodgkin's lymphomas start at adolescence but their incidence is lower compared to neuroblastomas.