22160 822 El Andal
Proteins, lipids and carbohydrates are three main constituents of food.
(a) Glucose is a carbohydrate. Glucose is stable in air at room temperature, but if heated it
will react with oxygen to form carbon dioxide and water. This reaction is exothermic
(i) Draw a fully labelled energy pathway diagram for the reaction between glucose
and oxygen
Please please help I have an exam

What’s the scientific notation for the number 6,840,000,000

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Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give