load effect
water erosion
none of the above
Answer:
the correct answer is water erosion (c.)
A. Cells are the basic units of life.
B. All cells come from pre-existing cells.
C. All organisms are made up of 1 or more cel
Answer:
A. Cells are the basic units of life.
Explanation:
The statement that supports that cells get energy from food to sustain the life of the organism is option A. Cells are the basic units of life. Every living thing on the planet needs food to survive and make their internal mechanism work, the cell is the smallest unit of life that does this to keep alive.
Energy is absorbed making it feel colder.
The reaction container always feels hot.
The reactants have less heat energy than the products.
More heat is given off than is put into the reaction.
Answer:
-The reactants have less heat energy than the products.
Explanation;
-An endothermic reaction is a reaction in which heat energy is absorbed from the surroundings. In such a reaction the energy of the reactants is less than the energy of the products and therefore the enthalpy change is positive, greater than zero.
The answer is Energy is absorbed making it feel colder. Endothermic reactions absorb heat from their environment (hence lowering the temperature of the nearby environment), unlike ectothermic reactions that release energy to their environment . The enthalpy of products in an endothermic reaction is higher than that of the reactant hence the change in enthalpy is positive.
The answer is; Heavy nuclei split into lighter nuclei
Heavier isotopes of elements are the most unstable and decay quickly into lighter elements (mostly because they have high neutron to proton ratio). The decay involves the splitting of the heavier atom into a lighter atom and the release of neutron(s) particles and radiation energy. The released neutrons then hit another isotope and split it. This chain of reaction continues so far as the isotopes are close by. The time it takes for a radioactive element to decay into another element is called half-life.