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The color of crude oil ranges from dark to light, mainly brown-black, brown-black, gray-black, black-brown, and black-brown; also gray-green, red-brown, light yellow, light yellow-green,...

Risks of oil extraction Oil extraction will cause climate and environmental problems. Heavy oil extraction and use will increase carbon dioxide levels in the air,...

Here's what to do after a crude oil spill : Set up isolation belt to recover crude oil ;Burn, but weather conditions must be considered;Dig...

Tanker accident. Oil spills at sea are caused by various oil tanker accidents every year , most of which are oil tanker collisions caused...

The word oil comes from China. In 977 AD, the word "petroleum" appeared in the "Taiping Guangji" compiled by the Northern Song Dynasty. The...

Colors of oil , including deep red, golden yellow, dark green, black, maroon and clear. In short, oil is very rich in color, depending...

Oil is not a pure substance, it is a mixture. Petroleum, also known as crude oil , contains gasoline , kerosene , diesel oil...

New energy vehicles refer to the use of unconventional vehicle fuels as the power source (or the use of conventional vehicle fuels, the use...

Petroleum can be extracted into solvent oil, aviation kerosene, aviation gasoline, ordinary gasoline, diesel oil, lubricating oil, gear oil, heavy oil, paraffin and so...

On December 20, Capital Bonds learned that the key words of the stock market in 2021 cannot be separated from shock and differentiation. Under...

We can compare the selection of funds to the selection of beauties. In the face of many beauties, we cannot be dazzled. We should...

When investing in index funds , we usually give priority to broad-based indices, such as the CSI 300 Index and the Shanghai Composite Index....