HELPP ASAP!!Which of the following is a true statement? A. Organic carbón is found in all living things

B. a compound has different properties from each of its elements

C. Water is made from the elements of carbon and oxygen

D. Hydrogen compounds are the most comment in the world

When you turn on a battery-operated device, an electrical circuit is

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is