Answer: The correct requirement for a black hole to form is:
C. The star must be 10 to 28 times larger than Earth’s sun, and a supernova explosion must have occurred.
Explanation: The least star that is larger than the sun is 10 times larger and a supernova explosion would have happen before a black hole to form.
Answer:
A. The ice has a high albedo.
Explanation:
Albedo is a measure of ‘whiteness’ or reflectivity which is also the rate at which a surface is able to reflect a percentage of solar radiation it receives. White surfaces have a higher albedo which is why Arctic and Antarctic regions with lots of ice sheets have a high albedo. They play a big role in regulating global temperatures. The larger the ice sheet cover in the antarctic and arctic regions, the more they reflect solar radiation back to space hence keeping the temperatures on earth from rising considerably.
Answer:
In the past years, nature has been rapidly deteriorating due to human actions. One of the most prominent issues is deforestation. We as humans depend on trees to provide lumber, paper, and much more but at the same time trees also provide us with oxygen, prevent soil erosion, and provide a habitat for many species of animals.
The Amazon Rainforest is the home to billions of organisms and thousands of species. As we continue to destroy the habitat of these species, we are causing many of them to become endangered and even extinct. Though the death of a few birds or trees may not seem significant, everything in our planet is connected in some way. The extinction of one species can cause a major gap in the food web, impacting the entire ecosystem. For example, deforesting the habitat of birds will cause them to more easily be captured by their predators. The predator population will then grow exponentially, but because the bird population is decreasing the predator population will eventually die out. Since now there are no predators at all in the area for pests such as mice, these pests can no infest agricultural farms killing crops. Without these crops we humans cannot survive, so in the end us humans will be the ones impacted by our own actions. This example may seem like an exaggerated example to many, but when you take a look back at the major famines throughout history you will be able to see the trend.
It is understandable that many people depend on logging to make a living for themselves and their families. but other selfish people just want the best for themselves. In order to combat these two problems we must persuade governments to put harsher laws in place for those who illegally damage environment for their own benefits, and provide support to those whose jobs may be at risk due to environmental protection regulations. If the greedy are punished for their actions, it will keep them from deforesting more trees. As for the loggers, if the government can provide basic or vocational education to those people so they have the ability to work in other fields (can be related to logging like environmental protection or something different that won't harm the environment), then it will allow the people affected to smoothly transition to another style of living that won't harm the environment.
Explanation:
You first need to provide some scientific and specific evidence for what logging is doing to the environment for some credibility. Afterwards you need to explain <em>why</em> people should care about those impacts. Then in the end make sure to state the stakeholders and provide a few examples of how they can benefit from slowing down deforestation.
Answer:
During high tide when the level of seawater rises, more sea water is brought into the estuary. This makes the water very salty and thus increases the percentage of dissolved salt in the estuary. Therefore, at high tide, the salinity of an estuary increases significantly.
Explanation:
Explanation:
It is because we are, this is the first time in human history, where we have technology and science is widely accepted, without being ridiculed by religious figures. We are truly out of the dark ages and the basic humanity of a few hundred years ago and we are now in the age of light, where people can be cured of many ailments and you don't even have to get up from your lazy buttocks to get food, you can just shout at a machine to do it.
Almost each and every activities of human beings are being done with the support of science and technology.We take support pf science and technology in educational field banks industrial sector as well as in home .Without science and technology ,nobody can imagine for luxurious life in this world.Due to these reasons,modern world is called age of science and technology.
hope it helps :)
