Answer:
Ice wedges are a big cause of potholes in roads and streets. As ice forms in the cracks of a street, the water expands and pushes against the surrounding rock, making the cracks wider, eventually breaking apart the rock.
Answer:
China's main source of economic growth are through agriculture, production of goods, transportation and cheap labour.
Each of these aforementioned factors helped in boosting the economic growth and development of China.
China's agriculture produce are exported across the globe.
It's also worth noting that China had friendly policy which attracts foreign investors through their Special Economic Zones initiated by the government.
The income generated from tax generated from the foreign investors and other IGRs were used to expand their production industry whose finished goods were transited via effective transport system such as waterways to other countries especially the USA,
All these and more made China a major commercial economy.
Answer:
The best soil for gardening is option 2
Explanation:
Loamy soil is the ideal soil for gardening because it is the best for adequate plant growth. A good combination of sand, silt and clay gives the best kind of soil for plant growth. This allows for adequate pores in the soil which is very important for the plant roots and for the passage of water and air into the roots of the plants. The ideal combination for a loamy soil in terms of sand, clay and silt is 40%, 20% and 40% respectively. The best option is the second option which is closest to the ideal loamy soil composition.
I hope I have been able to help.
Answer:
Sediments are used to provide the proxies to understand the environmental changes as, the sediments are formed by the activity of the weathering from the wind, glacier and the water. The different weathering agent and other transportation agent are different types of the mark over the sediments that help in the study of the past environment.
Answer: Option (C)
Explanation: Hydro-fracking is a process by which the natural gas can be taken out by drilling down into the earth before injecting a high pressure fluid or a water-mixture. It is an efficient and a cheaper method and but sometimes oil seeps through the fractures, which could probably harm the environment.
Thus the correct answer is option (C).
