Answer:
4. Structural ,5. Space Filling, 6. Ball and stick
Explanation:
just did it
Answer:
I think the answer is C
''Reusing plastic bags''
Explanation:
Removing carnivores from a forest has a great impact on a environment since the population of the herbivores will increases drastically and the dynamic equilibrium of the area will be greatly effected.
If we look at choice B '' Heating homes with fossil fuels'', this will also have a big impact on the earth since fossil fuels are non-renewable and take centuries to form. Heating homes with them will result in loss of fossil fuels.
Now let's look at choice D ''Adding heavy metals to the water supply''. Heavy metals are dangerous to the human health and even cause cancer. This will cause thousands of deaths and will also have a great impact on the global stability.
This leaves choice C ''Reusing plastic bags''. This will cause less pollution and less harm to wildlife but doesn't have any big threat to the global stability. As in changing the world population or causing deaths in large numbers.
so I think choice C is the answer
○ 
motive
○ 
observation
○ 
reaction
◉ 
stimulus
The cue or combo of cues that produces a response is called a 
, which is a thing or event that causes a specific reaction in an organ or tissue.
Safety rules and symbols ensure safety during the investigation. for example:- some chemicals used mybe toxic or should be handled in a certain way. without noting the safety symbols you may handle them in a way that can endanger your life and the lives of those around you.
