B. Velocity.
Momentum of a object = Mass * Velocity.
The momentum is a vector quantity and It has the same direction as the velocity.
the answer is B 1.5 to 2 hours
Answer:
By velocity, they mean speed. The formula for speed is Frequency * wavelength= Speed. So your answer is l225.
Weeds are very important agronomically because they reduce the yield of crops in three ways: by competing with the crop for water, light and nutrients, by interfering with crop harvest, and by contaminating harvested products with weed seeds and toxins. Weeds can reduce yield up to 50% and are responsible for millions of dollars in crop losses each year.
It’s biotic factor would be competition as Competition can be defined as an interaction between organisms or species, in which the fitness of one is lowered by the presence of another.
D) compounds and pure substances
because none of them are elements