On January 2003, I woke up before dawn. I took the Shatabdi Express at 6.15 a.m. from Delhi. I met a newly-married couple on the train. We spoke about Himachal Pradesh. I got off the train and entered the once-grand city of Agra. I saw twisted alleys with dense traffic, rickshaws, cars, and people. There were vendors selling religious artefacts, plastic toys, spices and sweets. I went to the Taj Mahal. It is constructed entirely of white marble, which has a magical quality. The colour of the marble changes with varying light and shadow. The Taj Mahal has marble with gemstones engraved inside it. I saw the reflection of the Taj Mahal in the pond. There were many school-children, tourists and tourist guides.
Fill in the blanks with the correct form of the verb in brackets.
(i) The heart is a pump that __(send) the blood circulating through our body. The pumping action__ (take place) when the left ventricle of the heart__ (contract). This __(force) the blood out into the arteries, which__ (expand) to receive the oncoming blood.
(ii) The African lungfish can live without water for up to four years. During a drought it__ (dig) a pit and__ (enclose) itself in a capsule of slime and earth, leaving a tiny opening for air. The capsule __(dry) and__ (harden), but when rain ___(come), the mud ____(dissolve) and the lungfish____ (swim) away.
(iii) MAHESH : We have to organise a class party for our teacher. ___(Do) anyone play an instrument?VIPUL : Rohit__ (play) the flute.
MAHESH : __(Do) he also act?
VIPUL : No, he ___(compose) music.
MAHESH : That’s wonderful!
When 3.0g of carbon is burnt in 8.00g oxygen, 11.00g of carbon dioxide is produced. What mass of carbon dioxide will be formed when 3.00g of carbon is burnt in 50.0g of oxygen? Which law of chemical combination will govern your answer?