Answer:
Both are correct
Explanation:
Not all are flowers in the path of engine progress and development. There is a phenomenon that haunts technicians since the beginning of engine development and, it seems, will always be present in the lives of those who work with the engines, this phenomenon is called abnormal combustion, also known as spark knock, ping, and detonation.
During abnormal combustion the increase in temperature and pressure within the combustion chamber which can cause serious engine damage.
The manila grasshopper has several benefits to ecosystem and humans.
- In general it facilitates decomposition and regrowth of plants by creating a balance between the types of plants that grow well.
- Like other animals, grasshopper eats and excretes in the soil. Its waste increases the fertility of the soil and promotes plant growth.
- Grasshopper body is rich in protein, on its death microorganisms break down its body and enrich the soil and helps plants to grow.
- Grasshoppers prevent over growth of plants as it consume about 10% of the available plant biomass, thus maintain ecological balance.
I think it is D but I'm not sure, however, 4 seems pretty right.
They determine the north and south ends
Answer:
I think it's the first one
Explanation:
I don't know though so don't trust me unless someone else says the same thing
