In some areas of the world, deserts are expanding into places that were once forests. during this process, some of the forest
trees will die off because of the change in climate.
but, some of the trees may survive this process. what adaptation would give a tree a chance to survive this environmental
change?
the growth of limbs that are skinner and longer,
the use of cones to protect and eventually spread seeds.
the type of root system that can grow deep into the ground,
increased hardness of the wood in the tree that allows it to grow higher,
and absorb more sunlight
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Iron reacts with oxygen to produce iron oxide (rust). this reaction is represented in an equation as 4fe + xo2 → 2fe2o3. identify the value of x that will balance the equation.

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers