Answer:
A) Cause disease
B) Cause algal blooms
Explanation:
A - Protists may look helpless, but they are deadly. Since they cause disease and even death in living things—including us humans.
B - Algal blooms are basically protists but with chloroplasts, so they are also a part of protists being harmful.
It's so broad, it includes physics, chemistry and biology
The moon has less gravity because it is smaller than the Earth.
