cho 16,6g hh al fe vào dd hcl dư thu đc 11,2l h2 tính kl moi kl trong hh

Giúp em với ạ 😭 Hiện tại e chỉ còn ngần này điểm, sẽ trả bù

Turn the sentences into reported speech

các chất dinh dưỡng trong thức ăn vật nuôi có vai trò như thế nào đến với cơ thể vật nuôi ? giúp

phân tích đa thức thành nhân tử: 3a ²b(m-x)- 6ab ²(x-m)

Mn giải giúp e vs ạ E cảm ơn nhiều ạ

Mn giúp e với sáng mai e phải nộp r

a) $\frac{3}{8}$ + $\frac{5}{8}$x = 75% b) (x + $\frac{7}{2}$)$^{2}$ - $\frac{1}{5}$ = $\frac{1}{20}$

73. My home hasn’t installed a solar water heater. If/ my home/ install/ a solar water heater/ we/ save a lot of energy. 74. Not all households in Viet Nam turn off lights during the Earth Hour. If/ all households/ Viet Nam/ turn off lights/ the Earth Hour/ we/ save enough electricity/ develop our rural areas. 75. Some students in our school still throw litter on the school ground. If/ students/ our school/ not throw litter/ the school ground/ our campus/ look/ greener/ fresher. 76. People use aluminum cans instead of glass bottles. If/ people/ use/ glass bottles/ they/ use/ again and again. 77. Our school ground is large but we don’t have a wind turbine. If/ we/ install/ a wind turbine/ our school/ become/ more eco-friendly. 78. People don’t use organic fertilizers. If/ people/ use/ organic fertilizers/ they/ prevent/ land pollution. 79. A large number of people ride their motorbikes to work. If/ people/ ride/ bikes/ they/ keep/ air/ less polluted. 80. That factory doesn’t have a wastewater treatment system. If/ that factory/ have/ wastewater treatment system/ river/ not become/ so polluted. (Em đag cần gấp )

X)-Read the passage, and choose the correct answer A, B, C or D for each question. Saving the Environment: One Home at a Time Pollution can be seen not only throughout the world, but also in our own homes. It comes from household chemicals, the amount of water people use and the waste people produce and throw away. What can be done to stop this pollution? Surprisingly, a person can help save the environment by doing simple things. First, we need to recycle, which allows products to be used over and over again. Recycling can also reduce the number of trees cut down to produce paper products. It takes very little effort. It is not hard to place plastic and glass bottles, aluminum cans and paper in a bin. Anyone can do it. Second, we need to watch the amount of water used in the home. It can be conserved by taking short shower instead of baths, repairing leaky faucets, using the dishwasher or washing machine only when fully loaded, or simply turning the faucet off while brushing your teeth. Third, we need to reduce waste. We need to recycle whenever possible, but should also try to use this waste effectively. For example, grass clippings and food scraps can be made into compost for plants. The average person produces 4.3 pounds of waste every day, but we can reduce that amount by recycling and reusing. If we do our part in our own homes, we can help keep the planet from becoming more polluted. 60. Pollution can be caused from the following sources except ______________. A. house chemicals B. water from household C. wastes D. water in rivers 61. Recycling can help us _____________. A. never cut down trees B. use products again and again C. place garbage bins easily D. produce more paper products 62. In order to save water, we can do all of the following things except _________. A. take short showers instead of baths B. repair leaky faucets C. fully use the washing machine D. turn the faucet off while brushing your teeth 63. Recycling helps to reduce waste because _______________. A. plants need to develop B. a person can do it in his home C. waste can be recycled and reused D. an average man produces compost for plants 64. The word “It” in paragraph 2 refer to ____________. A. recycling B. the number C. cutting down D. effort XI)-Fill in each blank with ONE suitable word. The major cause of water pollution in Vietnam is the weakness in industrial wastewater management. Many factories (65)___________ fresh water to carry away waste (66)____________ their plants into canals, rivers, and lakes. Most of them do not have (67)___________ wastewater treatment system. Industrial waste water is directly discharged into canals, lakes, ponds, and rivers, causing serious (68)________ of surface water. For example, (69)_________ 2008. Vedan factory, a sodium glutamate plant, released their untreated industrial wastewater into the Thi Vai River and (70)___________ tons of fish and ducks in the river to die. Another cause of water pollution in Vietnam is the lack of awareness among citizens. Every day people generate a lot of (71)__________, and they throw it directly into canals, rivers, and ponds. They (72)_________ water from these sources to do their laundry, wash dishes, and bathe, and then they throw the dirty water that contain detergent and shampoo directly into them. (Gấp ah)