A. there will be less pollution.
b. less machinery=hiring workers=jobs.
c. If farm machinery broke in the field. repairing is very inconvenient. There will be no trailer to pull it away. This is a disadvantage of machinery.
H2 is colorless and odorless
NO2 is brown, pungent, and toxic
9: 9x3 .<span> (4x - 1)
10: (x + 7) . (7 - x)
I hope that this helps you.
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Answer:
Phosphorus cycle
Explanation:
Biogeochemical cycle, any of the natural pathways by which essential elements of living matter are circlated.
There are four types of biogeochemical cycle, they are ; water cycle,carbon cycle,nitrogen cycle and phosphorous cycle
Carbon cycle is the cycle in which photosynthesis and cellular respiration take place.
Water cycle involves transpiration.
Nitrogen cycle Is the cycle that is dependent upon bacteria for nitrogen fixation and denitrification.
Phosphorus cycle is one of the slowest biogeochemical cycle. It does not stay in the atmosphere, because it is normally in a liquid state at room temperature. It does not include the atmosphere.
There's basically 3 states of matter, gas, liquid and solid. (There's also plasma but that's whole another thing)
Sample 1 should be liquid. This is because liquid takes up spaces of the container. The molecules can slip past each other at ease as they have a weaker bond to each other. However, they couldn't be compressed so the volume couldn't be changed even in different containers, their volume is fixed.
Sample 2 should be solid. It has a fixed shape and thus it stays in the shape of a sphere. The molecules are fixed to each other, they have a strong bond between them and they cannot move around, therefore, their shape cannot be changed unless you heat them up and change it to another state.
Sample 3 should be a gas. Not only they take up the whole container, they can also change its volume depending on the size of the container. Each molecule has a lot of space around and they can move freely in the container as they want to. If the container is smaller, the molecules can be compressed together tighter. We can prove this by filling a syringe with air, cover the tip with your finger, and try to push the plunger. You should be able to push the plunger without air shooting out because the molecules can be compressed.
So there you have it, we can determine the different state of matter depending on their own properties.