Which of the following is an aldehyde?
H H H
O A. H-C-C-C-
=0
07
31
H H H
H
H HH
O=o
O B. H-C-C-C
10_H
H HH
НІНІН
40
O C. H-C-C-C-c
10_CH
H H
Н
H HH
D. H-0_CLC
20
CH,
H
HH

How have the greenhouse gasses increased from the year 2000 to 2018

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

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.