Q: The secondary wall contains _________ , a secondary cell component in plant cells that have completed cell growth/expansion. Read this paragraph and choose the correct option from the provided answers: Microtubules guide the formation of the plant cell wall. Cellulose is laid down by enzymes to form the primary cell wall. Some plants also have a secondary cell wall. The secondary wall contains a lignin, a secondary cell component in plant cells that have completed cell growth/expansion. Choices: - cytoplasm - glucogen - cellulose - lignin A:
lignin

(Question)
Q: Zinc reacting with hydrochloric acid produces bubbles of which gas? Read this paragraph and choose the correct option from the provided answers: Zinc reacting with hydrochloric acid produces bubbles of hydrogen gas. Choices: - carbon - helium - mustard - hydrogen A:
(Answer)
hydrogen

Ques: Q: What area beneath the earth's surface do magma collects? Read this paragraph and choose the correct option from the provided answers: Magma collects in magma chambers beneath Earth's surface. Magma chambers are located where the heat and pressure are great enough to melt rock. These locations are at divergent or convergent plate boundaries or at hotpots. Choices: - hot chambers - underneath chambers - erosion chambers - magma chambers A:
Ans: magma chambers

(Q).
Q: Molds and casts usually form in which type of rock? Read this paragraph and choose the correct option from the provided answers: Molds and casts are another way organisms can be fossilized. A mold is an imprint of an organism left in rock. The organism's remains break down completely. Rock that fills in the mold resembles the original remains. The fossil that forms in the mold is called a cast ( Figure below ). Molds and casts usually form in sedimentary rock. With compression ( Figure below ), an organism's remains are put under great pressure inside rock layers. This leaves behind a dark stain in the rock. Choices: - igneous - metamorphic - crystalline - sedimentary A:
(A).
sedimentary

Ques:Q: How many people die from air pollution each year? Read this paragraph and choose the correct option from the provided answers: Air pollution is harmful to human beings and other living things. About 22 million people die from air pollution each year. Breathing polluted air increases the risk of developing lung diseases such as asthma and lung cancer. Breathing bad air also increases the chances of dying from other diseases. Children are most likely to be affected by air pollution. That's because their lungs are still developing and growing. Children also take in more air for their size than adults do. Some air pollutants damage the environment as well as the health of living things. The type of damage depends on the pollutant. Air pollution can also harm the environment. Choices: - 14 million - 17 million - 5 million - 22 million A:

Ans:22 million

Ques: Q: What is the boiling and freezing point of water in celcius? Read this paragraph and choose the correct option from the provided answers: Melting and boiling points are somewhat unique identifiers, especially of compounds. In addition to giving some idea as to the identity of the compound, important information can be obtained about the purity of the material. Choices: - 100 degrees c and 32 degrees c - 212 degrees c and 0 degrees c - 212 degrees c and 32 degrees c - 100 degrees c and 0 degrees c A:
Ans:
100 degrees c and 0 degrees c