race day activities

Take a new iron nail, a gold item (ring or chain) and a silver item (ring or chain) during rainy weather. See that these are exposed to the effects of moist weather for a few days (3 to 4 days). 1) What changes are observed to all these items in the moist air? 2) How will you ..

Mariner IV (United States) Meanwhile the USA and the former USSR undertook a joint US-Soviet manned space mission called the Apollo-Soyuz Test Project. The Apollo Spacecraft carrying three astronauts and the Soyuz-19 Spacecraft, carrying two cosmonauts were launched separately on 15 t h July 1975. ..

Identify the row that shows the correct order of the activities you do in a day. => A or C or B or D..

Study the rainfall patterns in India from an atlas and identify where water is abundant and the regions of water scarcity. Did You Know? One of China's major rivers, the Yellow River, has run dry for part of the year since 1985. And in 1997 it failed to reach the sea for 226 days..

It was observed by Fujino (1967) that opening of stomata occurs due to the influx of K + ions into the guard cells. The source of K + ions are the neighbouring subsidiary and epidermal cells, there by increasing the concentration from 50mM to 300mM in guard cells. The increase in K + ion c..

Every day, Olga spends 3 hours and 20 minutes in painting and 4 hours 50 minutes for reading books. How much time does she spend on both the activities? => 8 hours 5 minutes or 3 hours 20 minutes or 7 hours 70 minutes or 8 hours 10 minutes..

A certain radio active isotope has half - life of 20 days. If one starts with 80 kg of the isotope, then how much is left after 8 days? => 60 kg or 36 kg or 42 kg or 32 kg or 38 kg..

Corrosion :- Many metals are chemically active elements and get easily affected by substances like moisture, air, acids, etc. One must have observed iron articles that are shiny when new, but get coated with a reddish brown powder when left for some time. This process is commonly k..

John's regular activities in a day are shown in the table. What percent of time does he spend sleeping? Activities Hours per day Sleeping 6 School 6 Eating 3 Home work 2 Others 7 => 37% or 30% or 35% or 25%..

A child spends 1 2 of a day in sleeping, 1 10 of the day in eating, 1 9 of the day in playing and the rest 1 5 of the day in doing other activities, like bathing, etc. Arrange these fractions from the least to the greatest. => 1 1 0 > 1 9 < 1 ..