Answer: B) 4 Explanation: The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.

Answer: C) 6 Explanation:   It is in the form of a2-b2a-b = a+ba-ba-b = a+b   Here a = 3.39   b = 2.61     = 3.39 + 2.61 = 6.

Answer: B) Monotheism Explanation: Belief in the existence of one god, or in the oneness of God is called Monotheism.

Answer: A) K.K. Venugopal Explanation: K.K. Venugopal is the new Attorney General of India since 2017. Kottayan Katankot Venugopal, known generally to us as K. K. Venugopal is an eminent Indian constitutional lawyer and a senior advocate in the Supreme Court of India. He was preceded by Mukul Rohatgi.

Answer: C) Both (A) and (B) Explanation: Quality of transmission is governed both by nature of signal and nature of communication channel/medium.

Answer: D) 0.125 Explanation: Here  18 in decimal means 8th part in 1. We know that 110 = 0.1 Then,   18 = ? => ? = 18 x 0.1110= 0.1 x 108= 0.5418= 0.125

Answer: B) Magma is injected into surrounding rock forming an igneous intrusive Explanation: Magma is injected into surrounding rock forming an igneous intrusive.   Actually it is a plutonic formation in which magma present beneath Earth surface deforms the shape of rocks present above it

Answer: A) June 26 Explanation: The government has decided to observe anti-Emergency day on June 25-26 and asked all its ministers to hold programmes across the country to remind people how Emergency was clamped by former Prime Minister Indira Gandhi in 1975.