A. Electrons B. Neutrons C. Protons D. All the above
Read More »Which of the following statements about the use of radioactive isotopes is correct?
A. In medicine, they are used as tracers for diagnostic purposes B. In industry, they are used to detect leak in water, oil and gas pipelines C. They are used to determine the age of rocks and fossils D. All of these statements are correct
Read More »Which of the following is droplet of water vapour suspended in the air and much close to the ground______?
A. Dew B. Color C. Composition D. volume
Read More »Which of the following process is important for he growth of individu______?l:
A. Meiosis B. Cell division C. Replication D. Metabolism
Read More »Our hands, tongue, and eyes have,______?
A. Mixxed type of cells B. Different specialization cell C. Different type of cel D. Same type of cell
Read More »Cell have half number of chromosomes are called,_____?
A. Soomatic B. Daughter C. Parents
Read More »In reproduction system, the Zygote is formed inside______?
A. Ovary B. Stigma C. Anther D. Pollen grain
Read More »An ecosystem where many animal and plants live together is known as______?
A. Community B. Habitats C. Population D. Abiotic environment
Read More »Protein is found in________?
A. Rice B. Pulses C. Sugarcane D. Wheat
Read More »Enzymes help in?
A. Respiration B. Digestion of food C. Immune system D. Reproduction
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