Answer:
i. 3/5
ii. 2/5
Explanation:
Solving the problem by any of the students A, B and C is an independent event as solution by one does not restrict the other one from solving
However, the problem will be solved if even one of them solves the question
Now Probability of not solving the question by A, B and C are
PA (not solving a problem) - 1-1/3 = 2/3
PB (not solving a problem) - 1-1/4 = 3/4
PC (not solving a problem) - 1-1/5 = 4/5
ii) Probability of not solving - 2/3*3/4*4/5 = 2 *1/5 = 2/5
i) Probability of solving - 1- Probability of not solving
= 1 - 2/5 = 3/5
Explanation:
The rainforests typically have high biodiversity i.e it has large covers of flora and fauna.
The tropical rainforests are considered to be the oldest biome on earth and that is why they have high biodiversity also there fact is the geographical area of these rainforests are pretty enormous and widespread across the globe.
the tropical rainforests provides equitable climate i.e good amount of rainfall and warm temperature which is a optimum conditions for plants and animal species to survive and also features the best conditions for regular food supplies and growth in natural biodiversity.
many different sources of food and types of shelters are also available in the tropical rainforest, fulfilling the conditions for a vast varieties in natural biodiversity. another important factor that the situations arises in this areas makes way for the new species such as natural disturbance and presence of mountain regions makes home for the refugee species to survive and live.
so these are the reasons why rainforests are typically so biodiversed.
plants and animals ecology in the rainforest has not been in the perfect condition which use to be some decades back it is worsening with time and is a matter of concern.
Tropical rainforests loss is a major environment concern today as because of global climate change has caused major deforestation in the tropical areas. people's influence on the rainforest is also a big problem to watch for.they have started clearing these huge forest cover for wood for furniture and for agriculture and cattle grazing. apart from these issues extinction of species due to global warming has also taken place.
Increase in green house gases and change in natural water cycle have started effecting the natural environment of these rainforests and so tropical rainforests today is big environment concern, as plants and animal's ecology has been disturbed.and losing of natural habitat.
Answer:
We need to start teaching others about the importance of keeping the rainforest alive. We should start by protecting more of our rainforests by having more parks. We should also try not to buy from comapinies that are tearing down the forest. We also should plant more trees and plants so our envoirment can stay helathy. If we dont try to at least save the rainforest it will damage the wildlife within.
Explanation:
ye welcome :)
There are a few different answers to this question, depending on what you are asking. I'll go over the main ones.
1. The Earth's axis is tilted in comparison to the Sun, so days get shorter in the winter months. This is due to less light, and therefore energy, hitting the Earth directly. Instead, that energy either misses entirely, or hits nearer to the Equator. This is why the poles have twenty-four hour days and nights depending on the season. (Night in the winter, day in the summer.)
2. In terms of the food chain, energy from the sun is converted to basic sugars by plants in a process known as photosynthesis, inside the plant's cloroplasts. Small animals such as mice and insects consume the plants, and the energy those plants converted from sunlight. This continues up the food chain until you get to apex-predators (tigers, bears, wolves, owls, etcetera).
3. In terms of electricity, solar panels are made of tons of 'solar cells' which tend to be lots of silicon atoms, which like to share electrons, and a conductive backing. (Pardon me if some of this section is incorrect, I only have a basic understanding of solar panels) When a photon (that is, a light particle) hits the silicon, it bumps off an electron, and the conductive backing catches it, resulting in a electrical current. This current is incredibly small per solar cell, so you need a ton of them to make any sort of useful power out of them. Solar panels do degrade over time, but incredibly slowly, there are some from the 1970's that still generate just as much power as they did originally (if not, only ever so slightly less).
I hope I answered what you needed to know! If you wanted a different answer, feel free to comment with some clarification and I would love to fill you in :)
Answer:
an agreement between countries covering particular matters, especially one less formal than a treaty.
Explanation:
