'is nearly zero' is correct and usable in written English.
You can use it when discussing a quantity that is very close to 0. For example, "The probability of success is nearly zero."
Surface tension is nearly zero in the fluid-filled lung.
And when it comes to renting, the national discussion is nearly zero.
Without every one of these elements, the probability of success is nearly zero.
The result reveals the Poisson's ratio is nearly zero and the elastic modulus of a vein is about 11 GPa.
There is nearly zero correlation between how a developing economy does one decade and how it does the next.
Economists often say that voting makes no sense, inasmuch as the material impact of any one vote is nearly zero.
"When you leave, if the lawn just needs to be picked up, fine — the cost is nearly zero.
It is that the height of swing foot is nearly zero at the desired moment of impact.
They lead to the prediction that the Arrhenius activation barrier is nearly zero for transitions from the dissociated state to the bound state.
The limiting Damköhler number, below which ignition probability is nearly zero, was found to be 140 for CH4/air and 40 for H2/air.
All intellectual property violates the efficiency rule that price should equal marginal cost of reproduction, which for knowledge is nearly zero.
