What is the passage mainly about?

a
different tools humans have invented to harness information
b
gamma rays and x-rays
c
electromagnetic waves and how humans utilize them
d
why waves have different wavelengths

50 POINTS!!! Explain how the War of 1812 included examples of national unity as well as examples of division. 20. Scientists have discovered that there has been a reduction in the butterfly population in an ecosystem. After muchresearch, they have identified that the carrying capacity for butterflies has been decreased. If the scientists want to increasethe butterfly population, which action should they recommend?A. removing primary producersB. spraying of insecticidesC. increasing runoffD. planting flowers solve for c solve for r Jacob made $45.50 selling lemonade. He wants to make 15% more the next time he sells his lemonade. How much money does Jacob want to make?PLEASE HELP!! FREE BRAINLY!! QUICK! 2x - 3y = 6Find the x and y Intercepts Pllzzzz help its an exam !!!! A side of the triangle below has been extended to form an exterior angle of 125 . Find the value of x When we hear the word bacteria, we probably think of disease transmission or illness. But bacteria provide manyhealth benefits to humans. All BUT ONE is a health benefit of bacteria today in the world of medicine.A)production of vaccinesB)genetic engineering to produce insulinfixing atmospheric nitrogen into a usable formD)probiotic added to food and vitamin supplements Javier teaches yoga classes at his community center. In a 60-minute class last night, he taught 30 poses. Today, he has a 30-minute class. If he teaches at the same rate, how many poses will Javier teach in today's class? what is greater -.89 or .4 A. 9,10 B.10,8.3 C. -10,8.3 D-9,10 Add. Use models if needed.PLZ HELP I WILL GIVE BRAINLIEST!!PLZ EXPLAIN 1. Which detail from the selection most effectively helps to develop the key idea that the Warsof the Roses were based on conflicting claims to the English throne?"The reference to roses came from the heraldic badges of thetwo houses: the white rose of York and the red rose ofLancaster."(lines 4-6)"However, the English kingdom devolved into chaos underHenry VI and the king's council, a group of aristocrats in chargeof the kingdom's management" (lines 9-11)"Henry recovered two years later, and the Lancastrians soughtto regain control of the kingdom." (lnes 15-16)"The House of Tudor, beginning with King Henry VII,established its rule and retained the crown until QueenElizabeth I's death in 1603." (lines 20-22) A 2-liter bottle of spring water costs $2.02. A 3-liter bottle of the same water costs $2.79.Which is the better deal? .. Please give me the answer from 1 to 10 and tell me how you get it please in a notebook 12. Match the Informational media examples to their corresponding source types.1. court documentsa. accounts by another personb. historical accounts2. photosc. personal accounts3. autobiographies Name one of the 3 joints used during a squat? You are about to gothrough a portalwhich will take youfanywhere atanytime. Where doyou choose to go? Why do you think jefferson wanted to know about the animals and plants of the new lands? Dragon makes all sales on account, subject to the following collection pattern: 30% are collected in the month of sale; 60% are collected in the first month after sale; and 10% are collected in the second month after sale. If sales for June, July, and August were $120,000, $160,000, and $220,000, respectively, what were the firm's budgeted collections for August and the company's budgeted receivables balance on August 31? Which best lists careers in the order of these employers in the Transportation and Logistics career cluster: self-employment, private companies, and the government?a. Taxi Drivers Warehouse Laborers Air Traffic Controllers b. Taxi Drivers Air Traffic Controllers Warehouse Laborers c. Air Traffic Controllers Warehouse Laborers Taxi Drivers d. Air Traffic Controllers Taxi Drivers Warehouse Laborers