Invisible dark matter and dark energy make up around 95 per cent of the universe between them. What's more, their densities are roughly equal - a state of affairs so unlikely that cosmologists have taken to calling it the cosmic coincidence problem. Is this a genuine conundrum? At first ...
Growing plants that are ill-suited to an area requires more water, energy and pesticides (杀虫剂), all of which affect the environment.(最后,要考虑当地的气候、水质和土壤。种植不适合某一地区的植物需要更多的水、能源和杀虫剂...
energyn.精力,力气;毅力;努力;能量; interchangeableadj.可交换的;可交替的;可互换的; equaladj.同样的;平等的;均等的;胜任的; arevi.(用于第二人称单复数现在时,第一、三人称复数现在时)是; mattern.事情;事态;关乎…的问题;材料;物质; andconj. 和,与;而且;于是,然后;因此; 相关例句 1、 These tw...
dedicated their time and energy to building and shaping the world we live in today, whether through their work, their families, or their community involvement. By recognizing and appreciating the significance of elderly people, we a...
The model is applied within the Robertson-Walker hypersphere, and suggests that the Hubble expansion exactly cancels the classical reaction imparted to matter following the Big Bang, leaving behind a residue proportional to the square of the acceleration. The model further suggests that the energy ...
F. Most DAC processes require a large amount of energy. G. As a matter of fact, CO2 is just a small part of the gases that make up air. 相关知识点: 试题来源: 解析 1. B 2. A 3. F 4. E 5. C 【导语】 本文是一篇说明文。文章主要围绕“从空气中去除二氧化碳”这一主题展开,介...
Dark energy and dark matter account for most of the universe, but what are these elusive phenomena? NASA/JPL/Hubble NASA's Wilkinson Microwave Anisotropy Probe (WMAP) provided a true watershed moment in humanity's quest to understand the cosmos when it calculated the age of the universe ...
The truth of the matter is that most of us need more planning, not more rationalizations for not doing it.What does the quotation from Dwight D. Eisenhower imply?A. We dont really need a plan when we do things.B. The process of making a plan is significant.C. A plan is more cruci...
If a similar protein is found in cold viruses-a protein that's present no matter what strain is involved-then it is possible that by 2025 or so, children could be getting a universal cold vaccine. And then they will have to listen to us old geezers reminsice about the days when we ...
. This includes a vast diversity of life forms, from microscopic bacteria to towering trees, as well as animals such as birds, mammals, and insects. The biosphere relies on the abiotic spheres for survival, drawing on their resources and contributing to the ongoing cycle of matter and energy....