Identify false statement.

• Frog can respire both through lungs and skin

• Bile juice is secreted by liver

• During inhalation volume of thoracic cavity is increased

• Microsporum is a pathogenic bacteria

22.

Identify the wrong match

• Sleeping sickness- Trypanosoma

• Amoebic dysentry-Entamoeba

• Chicken pox- Bacteria

• Malaria- Plasmodium

The amount of matter in same weight will be

• least at North pole

• least at equator

• least at Moon

• same at all of the above places

Which of the following metal is protected by its oxide layer

• Au

• Ag

• Al

•  Fe

Which of the following sample has greatest mass?

• 16.0 grams of O₂

• 0.8 mole of O₂

• 6.02 x10²³ molecules of O₂

• 20.4 L of O₂ at STP

Learning science can be enriched if

• teachers use different types of lectures and explanations

• real-world situations be brought into the classroom in which students interact with each other and the teacher acts as a facilitator

• due attention be paid to periodic tests in the classroom

• maximum teaching aids be used in the class

The first step of the scientific method is

• forming a hypothesis

• making an observation

• conducting an experiment

• predicting the result of the experiment

Which vitamin protects our eyes and skin from infection?

• Vitamin C

• Vitamin B

• Vitamin A

• Vitamin D

Convex mirror is used to form an image on a real object. Point out the wrong statement.

• Image lies between pole and focus

• Image is diminished in size

• Image is erect

• Image is real

Match List I with List-II and select the correct answer using the codes given below the lists.