I need help please !!

(Externalities) Complete each of the following sentences: a. Resources for which periodic use can be continued indefinitely are known as ____________ resources. b. Resources that are available only in a fixed amount are ____________ resources. c. The possibility that an open-access resource is used until the net marginal value of additional use equals zero is known as the ____________. Writing practiceInformal letterSituation : Your friend Alex suffers from Asthma , and he is following a strict recovery medical plan , but sometimes he gets bored .Question : Write a letter of help to your friend in which you encourage him .Write at least 100 words Please can some one help me with this I already have to study well because tomorrow Iam having 3 exams and our mr gave us this homework and iam so confused please I need help name the four major groups in the plant kingdom and discuss the major evolutionary trends across the groups You might think that after 200 years, the scientists who find, name, and describeEarth's species would be close to finished. But taxonomists, as organized as they maybe, have no idea how many species Earth has. Nor can they even provide aneducated guess. Although reporting over 16,000 new species every year,taxonomists still cannot predict how many more are undiscovered.In total, taxonomists have categorized and listed 1.2 million species on Earth. At thispoint, you would think scientists should be able to use the information they havegathered to make good predictions about how many species an ecosystem cansupport. This would help them make better predictions about how many species areleft to identify. So far, however, the guesses seem to vary so greatly that it seemsthere is no good theory for making a prediction.One of the main problems is that most of the places that seem to have a lot ofdiverse species are in places that are hard to get to. One such place is the ocean,where scientists believe some 80 percent of Earth's creatures are hiding at depthstoo deep for us to study. In addition, many of the planet's most diverse areas are inremote places with few taxonomists.Despite all the unknowns, scientists have agreed that there are between five and 15million species left to discover on Earth. This is a huge range, but whether it's five or15, taxonomists clearly still have a lot of work to do. And who knows, there may yetbe a dragon or a Loch Ness monster left to discover.Which word from the second paragraph explains what taxonomists do? (1 point)1) Categorized2) Ecosystem3) Support4) Prediction Please help!!!!!!! PlEaSe I will mark BrAiNlLeISt(the topic is about environmental issues) PLEASE HELPPP!!!!!!!! plzzz help The world's largest known source of ______________ can be found in this region under the Persian Gulcoalgoldsilverpetroleum What is the SI unit of time?A.secondB.minuteC.hourD. day Divide.(8x^3+ 31x^2+ 6x +40) + (2x+8) how do you simplify 4 ^2 4^5 A forensics expert has obtained a sample of human blood from a crime scene. How can DNA fingerprinting be useful for identifying the person who leftthe blood at the crime scene?A by identifying the sequence of nucleotides in the DNA of blood cellsB. by comparing DNA from the blood cells with DNA from suspectsC. by identifying certain genetically controlled traits of suspects, such as eye shape and blood typeD. by comparing karyotypes made from blood cells at the crime scene and blood cells from suspects the distance between two cities on a map is 3.5 centimeters. The map uses a scale in which 1 centimeter reprecents 20 kilometers. what is the actual distance between these two cities in kilometers? Data related to the acquisition of timber rights and intangible assets during the current year ended December 31 are as follows:Timber rights on a tract of land were purchased for $1,600,000 on February 22. The stand of timber is estimated at 5,000,000 board feet. During the current year, 1,100,000 board feet of timber were cut and sold.On December 31, the company determined that $3,750,000 of goodwill was impaired.Governmental and legal costs of $6,600,000 were incurred on April 3 in obtaining a patent with an estimated economic life of 12 years. Amortization is to be for three-fourths of a year.Required:1. Determine the amount of the amortization, depletion, or impairment for the current year for each of the foregoing items. Do not round your intermediate calculations.ItemImpairment, Amortization or Depletion Expensea.$b.$c.$Hide2. Journalize the adjusting entries required to record the amortization, depletion, or impairment for each item. 5. Suppose you invested PHP 25,000 at a simple interest at a rate of 2.5%, how much will be your investment after10 years? a. PHP 43,750.00C.PHP 45,730.00b. PHP 31,250.00d. PHP 47,350 Under Franklin D. Roosevelt, the stock exchange remained unregulatedTrue or flase Which fossil fuel puts the least amount of sulphur dioxide into the atmosphere?aPetroleumbLinoleumCCoaldNatural Gas Under constant acceleration, the average velocity of a particle is half the sum of its initial and finalvelocities. Is this still true if the acceleration is not constant? Explain. -12 times 9/-3 = ?Plz Help me el que se fue ala billa perdion su silla que es un refran un pregon o dicho Hits 2) How many solutions does the inequality have? A) 0 B) 1 C) 8 D) infinitely many