Q1. In surgery, metal pins are used for joining together broken bones. These metal pins remain uncorroded in the body. What is the material of these pins?
Q2. What is the term used to denote the critical temperature at which the air becomes saturated with vapour and below which the condensation is likely to begin ?
(d) Point of critical temperature
Q3. Which of the following substances is/are ozone depleting?
Select the correct answer from the codes given below:
Q4. Moraines are formed in—
Q5. A rock made up of cemented sand grains is?
Q6. A cross between homozygous recessive and heerozyous plant is
Q8. The significant quantitiy of upper soil is formed by
Q9. Who coined the term ‘gen’?
Q10. Saprophytes are the organisms which depend for food on
(c) Both dead plants and animals
(d) Inorganic chemical compounds